Arrangement and method for air management of a room

Abstract

An arrangement ( 1 ) for air management of a room ( 100 ) comprises ventilating means ( 10 ) for enabling exchange of air between the inside environment ( 102 ) of the room ( 100 ) and the outside environment ( 103 ) of the room ( 100 ); a stand-alone air purifier ( 20 ), which is arranged separately from the ventilating means ( 10 ), and which is adapted to remove pollutants from the air in the inside environment ( 102 ) of the room ( 100 ); and a control system ( 30, 31, 32 ), which is in communication with both the ventilating means ( 10 ) and the air purifier ( 20 ), and which is adapted to control operation of the ventilating means ( 10 ) and the air purifier ( 20 ) in dependence of air quality data relating to the inside environment ( 102 ) of the room and the outside environment ( 103 ) of the room, the control system ( 30,31,32 ) being configured to control the ventilating means ( 10 ) and the air purifier ( 20 ) differently depending on whether the air quality data relating to the outside environment of the room ( 100 ) is above or below a predetermined reference. Operation of the arrangement ( 1 ) is aimed at optimizing indoor air quality and minimizing energy consumption.

1 . Arrangement for air management of a room comprising
 ventilating means for enabling exchange of air between the inside environment of the room and the outside environment of the room;   a stand-alone air purifier, which is arranged separately from the ventilating means and which is adapted to remove pollutants from the air in the inside environment of the room; and   a control system, which is in communication with both the ventilating means and the air purifier, and which is adapted to control operation of the ventilating means and the air purifier in dependence of air quality data relating to the inside environment of the room and the outside environment of the room, the control system being configured to control the ventilating means and the air purifier differently depending on whether the air quality data relating to the outside environment is above or below a predetermined reference.   
     
     
         2 . Arrangement according to  claim 1 , wherein the control system is adapted to compare air quality data relating to the inside environment of the room to predetermined reference data. 
     
     
         3 . Arrangement according to  claim 2 , wherein the control system is adapted to set an inactive status of both the ventilating means and the air purifier in case it is found that the air quality of the inside environment of the room is equal to or better than a predetermined reference. 
     
     
         4 . Arrangement according to  claim 2 , wherein the control system is adapted to run a program for activating at least one of the ventilating means and the air purifier in case it is found that the air quality of the inside environment of the room is worse than a predetermined reference. 
     
     
         5 . Arrangement according to  claim 4 , wherein the control system is adapted to compare air quality data relating to the outside environment of the room to predetermined reference data. 
     
     
         6 . Arrangement according to  claim 5 , wherein the control system is adapted to alternate an active status of the ventilating means with an active status of the air purifier in case it is found that the air quality of the outside environment of the room is equal to or better than a predetermined reference. 
     
     
         7 . Arrangement according to  claim 6 , wherein the control system is adapted to make a comparison between air quality data relating to the inside environment of the room and air quality data relating to the outside environment of the room, to set an active status of the ventilating means and an inactive status of the air purifier in case it is found that the air quality of the outside environment of the room is better than the air quality of the inside environment of the room, and to set an inactive status of the ventilating means and an active status of the air purifier in case it is found that the air quality of the outside environment of the room is worse than the air quality of the inside environment of the room. 
     
     
         8 . Arrangement according to  claim 6 , wherein the control system is adapted to run a time counter program for controlling the duration of the operation of the ventilating means and the air purifier, respectively. 
     
     
         9 . Arrangement according to  claim 8 , comprising a user interface for enabling a user to supply the control system with information regarding characteristics of the room, wherein the control system is adapted to determine the duration of the operation of the ventilating means and the air purifier, respectively, on the basis of the information. 
     
     
         10 . Arrangement according to  claim 6 , comprising a flow meter for measuring the ventilated air amount, wherein the control system is adapted to stop the operation of the ventilating means as soon as it is found that the ventilated air amount has reached a predetermined reference level. 
     
     
         11 . Arrangement according to  claim 5 , wherein the control system is adapted to set an inactive status of the ventilating means and an active status of the air purifier in case it is found that the air quality of the outside environment of the room is worse than said predetermined reference. 
     
     
         12 . Arrangement according to  claim 11 , comprising sensing means for sensing the carbon dioxide level in the room, wherein the control system is adapted to change the inactive status of the ventilating means to an active status as long as it is found that the carbon dioxide level in the room is higher than a predetermined reference. 
     
     
         13 . Arrangement according to  claim 1 , wherein the air quality data relating to the inside environment of the room comprise at least one of carbon dioxide level data, particles level data and gas pollutants level data, and wherein the air quality data relating to the outside environment of the room comprise at least one of particles level data and gas pollutants level data. 
     
     
         14 . Arrangement according to  claim 1 , wherein the control system is adapted to retrieve air quality data relating to the outside environment of the room from a general data source. 
     
     
         15 . Method for air management of a room which is equipped with ventilating means for enabling exchange of air between the inside environment of the room and the outside environment of the room, and a stand-alone air purifier, which is arranged separately from the ventilating means, and which is adapted to remove pollutants from the air in the inside environment of the room, wherein operation of the ventilating means are controlled in dependence of air quality data relating to the inside environment of the room and the outside environment of the room, the ventilating means and the air purifier being controlled differently depending on whether air quality data relating to the outside environment of the room is above or below a predetermined reference.