Aerosol Delivery Device

Abstract

An aerosol delivery device comprises: an aerosol generator portion configured to receive a first aerosol precursor; an air flow passage configured to direct air past the aerosol generator portion to pick up the first aerosol precursor from the aerosol generator portion to form a first aerosol; and a support for maintaining the aerosol generator portion in a substantially central position in the air flow passage.

1 . An aerosol delivery device comprising:
 an aerosol generator portion configured to receive a first aerosol precursor;   an air flow passage configured to direct air past the aerosol generator portion to pick up the first aerosol precursor from the aerosol generator portion to form a first aerosol; and   a support for maintaining the aerosol generator portion in a substantially central position in the air flow passage.   
     
     
         2 . An aerosol delivery device according to  claim 1 , and further comprising a mouthpiece, the mouthpiece comprising a mouthpiece aperture forming part of the air flow passage, wherein the support is located in the mouthpiece aperture. 
     
     
         3 . An aerosol delivery device according to  claim 2 , wherein the support comprises ribs extending inwardly from a narrowing section of the air flow passage. 
     
     
         4 . An aerosol delivery device according to  claim 3 , wherein the support comprises three ribs extending inwardly from the narrowing section air flow passage. 
     
     
         5 . An aerosol delivery device according to  claim 1 , and further comprising a member, the member comprising the aerosol generator portion, wherein the member is configured to transfer the first aerosol precursor to the aerosol generator portion. 
     
     
         6 . An aerosol delivery device according to  claim 5 , wherein the member is formed of a second porous material, the member configured to wick the first aerosol precursor to the aerosol generator portion. 
     
     
         7 . An aerosol delivery device according to  claim 1 , and further comprising a storage for storing the first aerosol precursor. 
     
     
         8 . An aerosol delivery device according to  claim 7 , wherein the storage comprises a reservoir, the reservoir formed of a first porous material. 
     
     
         9 . An aerosol delivery device according to  claim 7 , wherein the storage comprises a tank configured to store the first aerosol precursor as a free liquid. 
     
     
         10 . An aerosol delivery device according to  claim 1 , wherein the first aerosol is sized to inhibit pulmonary penetration, and the first aerosol is transmissible within at least one of a mammalian oral cavity and a mammalian nasal cavity. 
     
     
         11 . An aerosol delivery device according to  claim 1 , wherein the aerosol delivery device is a consumable for a smoking substitute device. 
     
     
         12 . An aerosol delivery device according to  claim 1  and further comprising a second aerosol generator, the second aerosol generator configured to produce a second aerosol from a second aerosol precursor, wherein the second aerosol is sized for pulmonary penetration. 
     
     
         13 . An aerosol delivery device according to  claim 12 , wherein the second aerosol generator is configured to heat the second aerosol precursor to form the second aerosol. 
     
     
         14 . An aerosol delivery device according to  claim 12 , wherein the second aerosol generator is located so as to be upstream of the first aerosol generator in use. 
     
     
         15 . An aerosol delivery device comprising:
 a first aerosol generator configured to produce a first aerosol from a first aerosol precursor,   wherein the first aerosol is sized to inhibit pulmonary penetration, and the first aerosol is transmissible within at least one of a mammalian oral cavity and a mammalian nasal cavity; and   a mouthpiece comprising a mouthpiece aperture, wherein the mouthpiece aperture is configured to receive the first aerosol in use,   wherein the mouthpiece aperture comprises an inner surface, wherein the inner surface is uneven to reduce liquid build up on the inner surface.   
     
     
         16 . An aerosol delivery device according to  claim 15 , wherein the inner surface comprises grooves. 
     
     
         17 . An aerosol delivery device according to  claim 16 , wherein the grooves extend in a substantially axial direction. 
     
     
         18 . An aerosol delivery device according to  claim 16 , wherein the grooves have a depth of at least 0.2 mm. 
     
     
         19 . An aerosol delivery device according to  claim 16 , wherein a spacing between the grooves is less than a mass median diameter of particles in the first aerosol. 
     
     
         20 . An aerosol delivery device according to  claim 15 , wherein the inner surface comprises an even portion, wherein the even portion has a polished finish. 
     
     
         21 . An aerosol delivery device according to  claim 15 , wherein the inner surface is angled with respect to an axial direction such that the width of the mouthpiece aperture increases in a downstream direction. 
     
     
         22 . An aerosol delivery device according to  claim 15 , wherein the first aerosol generator comprises:
 an aerosol generator portion configured to receive the first aerosol precursor; and   an air flow passage configured to direct air past the aerosol generator portion to pick up the first aerosol precursor from the aerosol generator portion to form the first aerosol, wherein the mouthpiece aperture forms part of the air flow passage.   
     
     
         23 . An aerosol delivery device according to  claim 22 , wherein the aerosol generator comprises a member, the member comprising the aerosol generator portion, wherein the member is configured to transfer the first aerosol precursor to the aerosol generator portion. 
     
     
         24 . An aerosol delivery device according to  claim 15 , wherein the aerosol delivery device comprises a storage for storing the first aerosol precursor. 
     
     
         25 . An aerosol delivery device according to  claim 24 , wherein the storage comprises a reservoir, the reservoir formed of a first porous material. 
     
     
         26 . An aerosol delivery device according to  claim 24 , wherein the storage comprises a tank configured to store the first aerosol precursor as a free liquid. 
     
     
         27 . An aerosol delivery device according to  claim 15 , wherein the aerosol delivery device is a consumable for a smoking substitute device. 
     
     
         28 . An aerosol delivery device according to  claim 15  and further comprising a second aerosol generator, the second aerosol generator configured to produce a second aerosol from a second aerosol precursor, wherein the second aerosol is sized for pulmonary penetration. 
     
     
         29 . An aerosol delivery device according to  claim 28 , wherein the second aerosol generator is configured to heat the second aerosol precursor to form the second aerosol. 
     
     
         30 . An aerosol delivery device comprising:
 a reservoir configured to store a first aerosol precursor, wherein the reservoir is formed of a first porous material; and   a member comprising an aerosol generator portion, wherein the member is formed of a second porous material, wherein the member is configured to wick the first aerosol precursor from the reservoir to the aerosol generator portion, an air flow passage configured to direct air past the aerosol generator portion to pick up first aerosol precursor from the aerosol generator portion to form a first aerosol.   
     
     
         31 . An aerosol delivery device according to  claim 30 , wherein the second porous material has at least 40% porosity. 
     
     
         32 . An aerosol delivery device according to  claim 31 , wherein the second porous material has at least 50% porosity. 
     
     
         33 . An aerosol delivery device according to  claim 30 , wherein the second porous material has at most 80% porosity. 
     
     
         34 . An aerosol delivery device according to  claim 33 , wherein the second porous material has at most 70% porosity. 
     
     
         35 . An aerosol delivery device according to  claim 30 , wherein the first porous material has a density of at least 0.11 g/cm 3 . 
     
     
         36 . An aerosol delivery device according to  claim 30 , wherein the second porous material has a density of at most 0.17 g/cm 3 . 
     
     
         37 . An aerosol delivery device according to  claim 30 , wherein the aerosol delivery device comprises a chamber, the reservoir located in the chamber. 
     
     
         38 . An aerosol delivery device according to  claim 30 , wherein the first aerosol is sized to inhibit pulmonary penetration, and the first aerosol is transmissible within at least one of a mammalian oral cavity and a mammalian nasal cavity. 
     
     
         39 . An aerosol delivery device according to  claim 30 , wherein the aerosol delivery device is a consumable for a smoking substitute device. 
     
     
         40 . An aerosol delivery device according to  claim 30  and further comprising a second aerosol generator, the second aerosol generator configured to produce a second aerosol from a second aerosol precursor, wherein the second aerosol is sized for pulmonary penetration. 
     
     
         41 . An aerosol delivery device according to  claim 40 , wherein the second aerosol generator is configured to heat the second aerosol precursor to form the second aerosol. 
     
     
         42 . An aerosol delivery device comprising: a chamber;
 a reservoir located within the chamber, the reservoir configured to store a first aerosol precursor for forming a first aerosol; and   a first aerosol generator configured to generate a first aerosol from the first aerosol precursor, wherein the chamber comprises a chamber aperture, the chamber aperture configured to permit air to enter the chamber as the reservoir empties of first aerosol precursor.   
     
     
         43 . An aerosol delivery device according to  claim 42 , wherein the chamber aperture is located in an in use upper portion of the chamber. 
     
     
         44 . An aerosol delivery device according to  claim 42 , and comprising two said chamber apertures. 
     
     
         45 . An aerosol delivery device according to  claim 42 , wherein the first aerosol generator comprises:
 an aerosol generator portion configured to receive the first aerosol precursor; and   an air flow passage configured to direct air past the aerosol generator portion to pick up the first aerosol precursor from the aerosol generator portion to form the first aerosol.   
     
     
         46 . An aerosol delivery device according to  claim 45 , wherein the aerosol generator comprises a member, the member comprising the aerosol generator portion, wherein the member is configured to transfer the first aerosol precursor from the reservoir to the aerosol generator portion. 
     
     
         47 . An aerosol delivery device according to  claim 46 , wherein the member is formed of a second porous material, the member configured to wick the first aerosol precursor from the reservoir to the aerosol generator portion. 
     
     
         48 . An aerosol delivery device according to  claim 45 , wherein the or each said chamber aperture provides fluid communication between the reservoir and the air flow passage. 
     
     
         49 . An aerosol delivery device according to  claim 45 , wherein the air flow passage comprises first and second airflow branches, the reservoir located between the first and second airflow branches. 
     
     
         50 . An aerosol delivery device according to  claim 49 , wherein the first and second airflow branches are configured to provide inward airflow towards the aerosol generator portion. 
     
     
         51 . An aerosol delivery device according to  claim 45 , wherein the chamber apertures are located on opposing sides of the aerosol generator portion. 
     
     
         52 . An aerosol delivery device according to  claim 51  when dependent on  claim 9 , wherein the chamber
 apertures provide fluid communication between the reservoir and the first and second airflow branches. 
 
     
     
         53 . An aerosol delivery device according to  claim 42 , wherein the first aerosol is sized to inhibit pulmonary penetration, and the first aerosol is transmissible within at least one of a mammalian oral cavity and a mammalian nasal cavity. 
     
     
         54 . An aerosol delivery device according to  claim 42 , wherein the aerosol delivery device is a consumable for a smoking substitute device. 
     
     
         55 . An aerosol delivery device according to  claim 42  and further comprising a second aerosol generator, the second aerosol generator configured to produce a second aerosol from a second aerosol precursor, wherein the second aerosol is sized for pulmonary penetration. 
     
     
         56 . An aerosol delivery device according to  claim 55 , wherein the second aerosol generator is configured to heat the second aerosol precursor to form the second aerosol. 
     
     
         57 . An aerosol delivery device comprising:
 a member comprising an aerosol generator portion, wherein the member is configured to transfer a first aerosol precursor to the aerosol generator portion; and   an air flow passage configured to direct air past the aerosol generator portion to pick up the first aerosol precursor from the aerosol generator portion to form a first aerosol,   wherein the air flow passage comprises first and second airflow branches, the member located between the first and second airflow branches, wherein the first and second airflow branches are configured to provide inward airflow towards the aerosol generator portion.   
     
     
         58 . An aerosol delivery device according to  claim 57  and further comprising a storage for storing the first aerosol precursor. 
     
     
         59 . An aerosol delivery device according to  claim 58 , wherein the storage is located between the first and second aerosol branches. 
     
     
         60 . An aerosol delivery device according to  claim 58 , wherein the storage comprises a reservoir, the reservoir formed of a first porous material. 
     
     
         61 . An aerosol delivery device according to  claim 60 , and further comprising a chamber, the reservoir located within the chamber, wherein the chamber comprises a chamber aperture, the chamber aperture configured to permit air to enter the chamber as the reservoir empties of first aerosol precursor. 
     
     
         62 . An aerosol delivery device according to  claim 61 , comprising two said chamber apertures, wherein the chamber apertures are located on opposing sides of the aerosol generator portion. 
     
     
         63 . An aerosol delivery device according to  claim 62 , wherein the chamber apertures provide fluid communication between the reservoir and the first and second airflow branches. 
     
     
         64 . An aerosol delivery device according to  claim 58 , wherein the storage comprises a tank configured to store the first aerosol precursor as a free liquid. 
     
     
         65 . An aerosol delivery device according to  claim 57 , wherein the member is formed of a second porous material, the member configured to wick the first aerosol precursor to the aerosol generator portion. 
     
     
         66 . An aerosol delivery device according to  claim 57 , wherein the first aerosol is sized to inhibit pulmonary penetration, and the first aerosol is transmissible within at least one of a mammalian oral cavity and a mammalian nasal cavity. 
     
     
         67 . An aerosol delivery device according to  claim 57 , wherein the aerosol delivery device is a consumable for a smoking substitute device. 
     
     
         68 . An aerosol delivery device according to  claim 57  and further comprising a second aerosol generator, the second aerosol generator configured to produce a second aerosol from a second aerosol precursor, wherein the second aerosol is sized for pulmonary penetration. 
     
     
         69 . An aerosol delivery device according to  claim 68 , wherein the second aerosol generator is configured to heat the second aerosol precursor to form the second aerosol. 
     
     
         70 . An aerosol delivery device according to  claim 68 , wherein the second aerosol generator is located so as to be upstream of the first aerosol generator in use. 
     
     
         71 . An aerosol delivery device comprising:
 an aerosol generator portion configured to receive a first aerosol precursor; and   an air flow passage configured to direct air past the aerosol generator portion to pick up the first aerosol precursor from the aerosol generator portion to form a first aerosol,   wherein the air flow passage has a cross-sectional area of at most 2.0 mm 2  at the aerosol generator portion.   
     
     
         72 . An aerosol delivery device according to  claim 71 , wherein the air flow passage has a cross-sectional area of at most 1.5 mm 2  at the aerosol generator portion. 
     
     
         73 . An aerosol delivery device according to  claim 71 , wherein the air flow passage has a cross-sectional area of at least 0.5 mm 2  at the aerosol generator portion. 
     
     
         74 . An aerosol delivery device according to  claim 73 , wherein the air flow passage has a cross-sectional area of at least 0.8 mm 2  at the aerosol generator portion. 
     
     
         75 . An aerosol delivery device according to  claim 71  wherein the air flow passage has a cross-sectional area of between 0.9 and 1.2 mm 2 . 
     
     
         76 . An aerosol delivery device according to  claim 71 , and further comprising a mouthpiece, the mouthpiece comprising a mouthpiece aperture forming part of the air flow passage. 
     
     
         77 . An aerosol delivery device according to  claim 71 , and further comprising a member, the member comprising the aerosol generator portion, wherein the member is configured to transfer the first aerosol precursor to the aerosol generator portion. 
     
     
         78 . An aerosol delivery device according to  claim 77 , wherein the air flow passage comprises first and second airflow branches, the member located between the first and second airflow branches, wherein the first and second airflow branches are configured to provide inward airflow towards the aerosol generator portion. 
     
     
         79 . An aerosol delivery device according to  claim 77 , wherein the member is formed of a second porous material, the member configured to wick the first aerosol precursor to the aerosol generator portion. 
     
     
         80 . An aerosol delivery device according to  claim 71 , further comprising a storage for storing the first aerosol precursor. 
     
     
         81 . An aerosol delivery device according to  claim 79 , wherein the storage comprises a tank configured to store the first aerosol precursor as a free liquid. 
     
     
         82 . An aerosol delivery device according to  claim 71 , and further comprising a support for maintaining the aerosol generator portion in a substantially central position in the air flow passage. 
     
     
         83 . An aerosol delivery device according to  claim 71 , wherein the first aerosol is sized to inhibit pulmonary penetration, and the first aerosol is transmissible within at least one of a mammalian oral cavity and a mammalian nasal cavity. 
     
     
         84 . An aerosol delivery device according to  claim 71 , wherein the aerosol delivery device is a consumable for a smoking substitute device. 
     
     
         85 . An aerosol delivery device according to  claim 71 , further comprising a second aerosol generator, the second aerosol generator configured to produce a second aerosol from a second aerosol precursor, wherein the second aerosol is sized for pulmonary penetration. 
     
     
         86 . An aerosol delivery device comprising:
 an aerosol generator portion configured to receive a first aerosol precursor; and   an air flow passage configured to direct air past the aerosol generator portion to pick up the first aerosol precursor from the aerosol generator portion to form a first aerosol,   wherein the aerosol generator portion has an atomising area of more than 10 mm 2 .   
     
     
         87 . An aerosol delivery device according to  claim 86 , wherein the aerosol generator portion has an atomising area of more than 16 mm 2 . 
     
     
         88 . An aerosol delivery device according to  claim 87 , wherein the aerosol generator portion has an atomising area of more than 22 mm 2 . 
     
     
         89 . An aerosol delivery device according to  claim 86 , wherein the aerosol generator portion has an atomising area of no more than 36 mm 2 . 
     
     
         90 . An aerosol delivery device according to  claim 86 , wherein the aerosol generator portion has an atomising area of no more than 30 mm 2 . 
     
     
         91 . An aerosol delivery device according to  claim 89 , wherein the aerosol generator portion has an atomising area of no more than 24 mm 2 . 
     
     
         92 . An aerosol delivery device according to  claim 86 , and further comprising a member, the member comprising the aerosol generator portion, wherein the member is configured to transfer the first aerosol precursor to the aerosol generator portion. 
     
     
         93 . An aerosol delivery device according to  claim 92 , wherein the member is formed of a second porous material, the member configured to wick the first aerosol precursor to the aerosol generator portion. 
     
     
         94 . An aerosol delivery device according to  claim 86 , wherein the aerosol delivery device comprises a storage for storing the first aerosol precursor. 
     
     
         95 . An aerosol delivery device according to  claim 94 , wherein the storage comprises a reservoir, the reservoir formed of a first porous material. 
     
     
         96 . An aerosol delivery device according to  claim 94 , wherein the storage comprises a tank configured to store the first aerosol precursor as a free liquid. 
     
     
         97 . An aerosol delivery device according to  claim 86 , wherein the first aerosol is sized to inhibit pulmonary penetration, and the first aerosol is transmissible within at least one of a mammalian oral cavity and a mammalian nasal cavity. 
     
     
         98 . An aerosol delivery device according to  claim 86 , wherein the aerosol delivery device is a consumable for a smoking substitute device. 
     
     
         99 . An aerosol delivery device according to  claim 86  and further comprising a second aerosol generator, the second aerosol generator configured to produce a second aerosol from a second aerosol precursor, wherein the second aerosol is sized for pulmonary penetration. 
     
     
         100 . An aerosol delivery device according to  claim 99 , wherein the second aerosol generator is configured to heat the second aerosol precursor to form the second aerosol. 
     
     
         101 . An aerosol delivery device comprising:
 a storage configured to store a first aerosol precursor, the storage having a length;   a member comprising an aerosol generator portion, wherein the member is configured to transfer the first aerosol precursor from the storage to the aerosol generator portion, the member extending into the storage by at least 50% of the length of the storage; and   an air flow passage configured to direct air past the aerosol generator portion to pick up the first aerosol precursor from the aerosol generator portion to form a first aerosol.   
     
     
         102 . An aerosol delivery device according to  claim 101 , wherein the member extends into the storage by at least 60% of the length of the storage. 
     
     
         103 . An aerosol delivery device according to  claim 101 , wherein the member extends into the storage by at least 70% of the length of the storage. 
     
     
         104 . An aerosol delivery device according to  claim 101 , wherein the member extends into the storage by at least 80% of the length of the storage. 
     
     
         105 . An aerosol delivery device according to  claim 101 , wherein the member extends into the storage by at least 90% of the length of the storage. 
     
     
         106 . An aerosol delivery device according to  claim 101 , wherein the member extends all of the way through the storage. 
     
     
         107 . An aerosol delivery device according to  claim 101 , wherein the storage comprises a reservoir, the reservoir formed of a first porous material. 
     
     
         108 . An aerosol delivery device according to  claim 107 , wherein the storage comprises a tank configured to store the first aerosol precursor as a free liquid. 
     
     
         109 . An aerosol delivery device according to  claim 101 , wherein the member is formed of a second porous material, the member configured to wick the first aerosol precursor to the aerosol generator portion. 
     
     
         110 . An aerosol delivery device according to  claim 101 , wherein the first aerosol is sized to inhibit pulmonary penetration, and the first aerosol is transmissible within at least one of a mammalian oral cavity and a mammalian nasal cavity. 
     
     
         111 . An aerosol delivery device according to  claim 101 , wherein the aerosol delivery device is a consumable for a smoking substitute device. 
     
     
         112 . An aerosol delivery device according to  claim 101  and further comprising a second aerosol generator, the second aerosol generator configured to produce a second aerosol from a second aerosol precursor, wherein the second aerosol is sized for pulmonary penetration. 
     
     
         113 . An aerosol delivery device according to  claim 112 , wherein the second aerosol generator is configured to heat the second aerosol precursor to form the second aerosol. 
     
     
         114 . An aerosol delivery device according to  claim 112 , wherein the second aerosol generator is located so as to be upstream of the first aerosol generator in use. 
     
     
         115 . An aerosol delivery device comprising:
 an aerosol generator configured to produce, during a delivery event, a first aerosol from a first aerosol precursor, wherein the first aerosol is sized to inhibit pulmonary penetration, and the first aerosol is transmissible within at least one of a mammalian oral cavity and a mammalian nasal cavity, wherein the aerosol generator is configured to produce more than 1.0 mg total particle mass (TPM) of first aerosol per delivery event.   
     
     
         116 . An aerosol delivery device according to  claim 115 , wherein the aerosol generator is configured to produce more than more than 2.0 mg TPM of first aerosol per delivery event. 
     
     
         117 . An aerosol delivery device according to  claim 116 , wherein the aerosol generator is configured to produce more than more than 3.0 mg TPM of first aerosol per delivery event. 
     
     
         118 . An aerosol delivery device according to  claim 115 , wherein the aerosol generator is configured to produce less than 20.0 mg TPM of first aerosol per delivery event. 
     
     
         119 . An aerosol delivery device according to  claim 115 , wherein the aerosol generator is configured to produce less than 10.0 mg TPM of first aerosol per delivery event. 
     
     
         120 . An aerosol delivery device according to  claim 115 , wherein the first aerosol generator comprises:
 an aerosol generator portion configured to receive the first aerosol precursor; and   an air flow passage configured to direct air past the aerosol generator portion to pick up the first aerosol precursor from the aerosol generator portion to form the first aerosol, wherein the mouthpiece aperture forms part of the air flow passage.   
     
     
         121 . An aerosol delivery device according to  claim 120 , wherein the aerosol generator comprises a member, the member comprising the aerosol generator portion, wherein the member is configured to transfer the first aerosol precursor to the aerosol generator portion. 
     
     
         122 . An aerosol delivery device according to  claim 121 , wherein the member is formed of a second porous material, the member configured to wick the first aerosol precursor to the aerosol generator portion. 
     
     
         123 . An aerosol delivery device according to  claim 116 , wherein the aerosol delivery device comprises a storage for storing the first aerosol precursor. 
     
     
         124 . An aerosol delivery device according to  claim 123 , wherein the storage comprises a reservoir, the reservoir formed of a first porous material. 
     
     
         125 . An aerosol delivery device according to  claim 124 , wherein the storage comprises a tank configured to store the first aerosol precursor as a free liquid. 
     
     
         126 . An aerosol delivery device according to  claim 116 , wherein the aerosol delivery device is a consumable for a smoking substitute device. 
     
     
         127 . An aerosol delivery device according to  claim 116  and further comprising a second aerosol generator, the second aerosol generator configured to produce, during the delivery event, a second aerosol from a second aerosol precursor, wherein the second aerosol is sized for pulmonary penetration. 
     
     
         128 . An aerosol delivery device according to  claim 127 , wherein the second aerosol generator is configured to heat the second aerosol precursor to form the second aerosol. 
     
     
         129 . An aerosol delivery device according to  claim 128 , wherein the second aerosol generator is configured to produce, during the delivery event, between 4 and 10 mg TPM of second aerosol. 
     
     
         130 . An aerosol delivery device comprising:
 a tank configured to store a first aerosol precursor for forming a first aerosol; and   a tank aperture providing fluid communication between the tank and an exterior of the tank, the tank aperture configured to permit air flow into the tank as the tank empties, the tank aperture configured to inhibit flow of first aerosol precursor out of the tank.   
     
     
         131 . An aerosol delivery device according to  claim 130 , wherein the tank aperture comprises a non-return valve, the non-return valve configured to prevent flow of first aerosol precursor out of the tank, the non-return valve configured to permit flow of air into the tank as the tank empties. 
     
     
         132 . An aerosol delivery device according to  claim 131 , wherein the non-return valve is a duckbill valve. 
     
     
         133 . An aerosol delivery device according to  claim 130 , wherein the tank aperture comprises a plug, wherein the plug is formed of a matrix material, wherein the matrix material permits flow of air but inhibits flow of first aerosol precursor through the matrix material. 
     
     
         134 . An aerosol delivery device according to  claim 133 , wherein the plug is saturated with first aerosol precursor. 
     
     
         135 . An aerosol delivery device according to  claim 133 or 134 , wherein the matrix material is polyetherimide (PEI). 
     
     
         136 . An aerosol delivery device according to  claim 130 , wherein the tank aperture provides fluid communication between the tank and an exterior of the aerosol delivery device. 
     
     
         137 . An aerosol delivery device according to  claim 130 , and further comprising: an aerosol generator portion configured to receive the first aerosol precursor; and
 an air flow passage configured to direct air past the aerosol generator portion to pick up the first aerosol precursor from the aerosol generator portion to form the first aerosol.   
     
     
         138 . An aerosol delivery device according to  claim 137 , and further comprising a member, the member comprising the aerosol generator portion, wherein the member is configured to transfer the first aerosol precursor from the tank to the aerosol generator portion. 
     
     
         139 . An aerosol delivery device according to  claim 138 , wherein the plug maintains the member in position. 
     
     
         140 . An aerosol delivery device according to any one of  claims 137 to 139 , wherein the tank aperture provides fluid communication between the tank and the airflow passage. 
     
     
         141 . An aerosol delivery device according to  claim 130 , wherein the first aerosol is sized to inhibit pulmonary penetration, and the first aerosol is transmissible within at least one of a mammalian oral cavity and a mammalian nasal cavity. 
     
     
         142 . An aerosol delivery device according to  claim 130 , wherein the tank aperture is located in an in use upper portion of the tank. 
     
     
         143 . An aerosol delivery device according to  claim 130 , wherein the aerosol delivery device is a consumable for a smoking substitute device. 
     
     
         144 . An aerosol delivery device according to  claim 130  and further comprising a second aerosol generator, the second aerosol generator configured to produce a second aerosol from a second aerosol precursor, wherein the second aerosol is sized for pulmonary penetration. 
     
     
         145 . An aerosol delivery device comprising:
 a member comprising an aerosol generator portion, the aerosol generator portion configured to receive a first aerosol precursor; and   an air flow passage configured to direct air past the aerosol generator portion to pick up the first aerosol precursor from the aerosol generator portion to form a first aerosol,   wherein the aerosol delivery device comprises mutually engaging features to maintain the member in the aerosol delivery device.   
     
     
         146 . An aerosol delivery device according to  claim 145 , wherein the mutually engaging features comprise a groove and a protrusion. 
     
     
         147 . An aerosol delivery device according to  claim 145 or claim 146 , wherein the aerosol delivery device comprises a tube for receiving the member. 
     
     
         148 . An aerosol delivery device according to  claim 147  when dependent on  claim 146 , wherein an internal surface of the tube comprises the protrusion and the member comprises the groove. 
     
     
         149 . An aerosol delivery device according to  claim 145 , wherein the member is formed of a porous material. 
     
     
         150 . An aerosol delivery device according to  claim 149 , wherein the groove is formed by a grinding process. 
     
     
         151 . An aerosol delivery device according to  claim 145 , wherein the mutually engaging features comprise a barb and a deformable surface for receiving the barb. 
     
     
         152 . An aerosol delivery device according to  claim 149 , wherein the aerosol delivery device comprises a slit, the slit providing the barb, and the deformable surface is a surface of the member. 
     
     
         153 . An aerosol delivery device according to  claim 152 , wherein the slit is substantially cross-shaped. 
     
     
         154 . An aerosol delivery device according to  claim 145 , wherein the aerosol delivery device comprises a storage for storing the first aerosol precursor, the member configured to transfer the first aerosol precursor from the storage to the aerosol generator portion. 
     
     
         155 . An aerosol delivery device according to  claim 154 , wherein the tube extends into the storage. 
     
     
         156 . An aerosol delivery device according to  claim 145 , wherein the storage comprises a reservoir, the reservoir formed of a porous material. 
     
     
         157 . An aerosol delivery device according to  claim 145 , wherein the storage comprises a tank configured to store the first aerosol precursor as a free liquid. 
     
     
         158 . An aerosol delivery device according to  claim 145 , wherein the aerosol delivery device is a consumable for a smoking substitute device. 
     
     
         159 . An aerosol delivery device according to  claim 145  and further comprising a second aerosol generator, the second aerosol generator configured to produce a second aerosol from a second aerosol precursor, wherein the second aerosol is sized for pulmonary penetration. 
     
     
         160 . A method of assembling an aerosol delivery device, wherein the aerosol delivery device comprises a chamber, the chamber comprising an insertion aperture, the method comprising:
 compressing a reservoir to a compressed state, wherein the reservoir is configured to store a first aerosol precursor for forming a first aerosol, wherein the reservoir is formed of a first porous material; and inserting the reservoir into the chamber through the insertion aperture whilst in said compressed state, the reservoir returning to a substantially uncompressed state in the chamber.   
     
     
         161 . A method according to  claim 160 , wherein said step of compressing the reservoir comprises inserting the reservoir into a sleeve, and said step of inserting the reservoir comprises pushing the reservoir out of the sleeve and into the chamber. 
     
     
         162 . A method according to  claim 161 , wherein said step of inserting the reservoir comprises pushing the reservoir out of the sleeve while the sleeve is at least partially inserted through the insertion aperture. 
     
     
         163 . A method according to  claim 161 or claim 162 , wherein said step of inserting the reservoir comprises pushing the reservoir out of the sleeve using a tool. 
     
     
         164 . A method according to  claim 160  and further comprising inserting a member into the reservoir, wherein the member comprises an aerosol generator portion, wherein the member is configured to transfer a first aerosol precursor from the reservoir to the aerosol generator portion. 
     
     
         165 . A method according to  claim 164 , wherein the member pierces the reservoir during insertion of the member into the reservoir. 
     
     
         166 . A method according to  claim 165 , wherein the member comprises a tapered end, the tapered end piercing the reservoir during insertion of the member into the reservoir. 
     
     
         167 . A method according to any one of  claims 164 to 166 , wherein the member is formed of a second porous material, the member configured to wick the first aerosol precursor from the reservoir to the aerosol generator portion. 
     
     
         168 . A method according to any one of  claims 164 to 167 , wherein said step of inserting the member into the reservoir comprises pushing the member against a tool. 
     
     
         169 . A method according to  claim 160 , wherein the first aerosol is sized to inhibit pulmonary penetration, and the first aerosol is transmissible within at least one of a mammalian oral cavity and a mammalian nasal cavity. 
     
     
         170 . A method according to  claim 160 , wherein the aerosol delivery device comprises an air flow passage configured to direct air past the aerosol generator portion to pick up the first aerosol precursor from the aerosol generator portion to form the first aerosol. 
     
     
         171 . A method according to  claim 160 , wherein the aerosol delivery device is a consumable for a smoking substitute device. 
     
     
         172 . A method according to  claim 160 , wherein the aerosol delivery device further comprises a second aerosol generator, the second aerosol generator configured to produce a second aerosol from a second aerosol precursor, wherein the second aerosol is sized for pulmonary penetration. 
     
     
         173 . A method according to  claim 172 , wherein the second aerosol generator is configured to heat the second aerosol precursor to form the second aerosol. 
     
     
         174 . An aerosol delivery device comprising:
 a chamber comprising an insertion aperture; and   a reservoir located within the chamber, the reservoir configured to store a first aerosol precursor for forming a first aerosol, wherein the reservoir is formed of a porous material, wherein the reservoir is in a substantially uncompressed state, wherein in the substantially uncompressed state the reservoir is wider than the insertion aperture.   
     
     
         175 . A method of making an aerosol delivery device comprising:
 configuring an aerosol generator portion to receive a first aerosol precursor;   configuring an air flow passage to direct air past the aerosol generator portion to pick up the first aerosol precursor from the aerosol generator portion to form a first aerosol; and   maintaining the aerosol generator portion in a substantially central position in the air flow passage.   
     
     
         176 . The method of  claim 175 , and wherein the step of maintaining the aerosol generator portion in a substantially central position in the air flow passage includes providing a mouthpiece comprising a mouthpiece aperture forming part of the air flow passage, and supporting the aerosol generator portion within the mouthpiece aperture. 
     
     
         177 . The method of  claim 176  wherein the step of providing the mouthpiece is defined further as supporting the aerosol generator portion within the mouthpiece aperture with ribs extending inwardly from a narrowing section of the air flow passage. 
     
     
         178 . The method of  claim 177 , wherein the step of providing the mouthpiece is defined further as supporting the aerosol generator portion within the mouthpiece aperture with three ribs extending inwardly from a narrowing section of the air flow passage. 
     
     
         179 . The method of  claim 175 , and further comprising transferring the first aerosol precursor to the aerosol generator portion. 
     
     
         180 . The method of  claim 179 , wherein transferring the first aerosol precursor to the aerosol generator portion includes wicking the first aerosol precursor to the aerosol generator portion.