Filter and air-conditioning device

Abstract

An antibacterial mask that includes a filter portion having a first layer and a second layer, and at least one of the first layer and the second layer include a plurality of first piezoelectric yarns that generate at least a first charge by stretching.

1 . An antibacterial mask comprising:
 a filter portion having a first layer and a second layer, wherein at least one of the first layer and the second layer include a plurality of first piezoelectric yarns that generate at least a first charge by stretching.   
     
     
         2 . The antibacterial mask according to  claim 1 , wherein the first layer includes the plurality of first piezoelectric yarns, and the second layer is positioned on a user side of the antibacterial mask. 
     
     
         3 . The antibacterial mask according to  claim 2 , wherein the second layer is a cloth that does not include any piezoelectric yarns. 
     
     
         4 . The antibacterial mask according to  claim 2 , wherein the first layer a nonwoven fabric including the first piezoelectric yarns. 
     
     
         5 . The antibacterial mask according to  claim 2 , wherein the first layer is a woven fabric containing the first piezoelectric yarns. 
     
     
         6 . The antibacterial mask according to  claim 1 , wherein the second layer includes the plurality of first piezoelectric yarns, and the second layer is positioned on a user side of the antibacterial mask. 
     
     
         7 . The antibacterial mask according to  claim 6 , wherein the first layer is a cloth that does not include any piezoelectric yarns. 
     
     
         8 . The antibacterial mask according to  claim 6 , wherein the second layer a nonwoven fabric including the first piezoelectric yarns. 
     
     
         9 . The antibacterial mask according to  claim 6 , wherein the second layer is a woven fabric containing the first piezoelectric yarns. 
     
     
         10 . The antibacterial mask according to  claim 1 , wherein
 the first layer includes the plurality of first piezoelectric yarns,   the second layer includes a plurality of second piezoelectric yarns that generate at least a second charge by stretching, the second charge being opposite the first charge, and   the second layer is positioned on a user side of the antibacterial mask.   
     
     
         11 . The antibacterial mask according to  claim 1 , wherein
 the first layer includes the plurality of first piezoelectric yarns,   the second layer includes the plurality of first piezoelectric yarns and a plurality of second piezoelectric yarns that generate at least a second charge by stretching, the second charge being opposite the first charge, and   the second layer is positioned on a user side of the antibacterial mask.   
     
     
         12 . The antibacterial mask according to  claim 1 , wherein
 the first layer includes the plurality of first piezoelectric yarns,   the second layer includes the plurality of first piezoelectric yarns and a plurality of second piezoelectric yarns that generate at least a second charge by stretching, the second charge being opposite the first charge, and   the first layer is positioned on a user side of the antibacterial mask.   
     
     
         13 . The antibacterial mask according to  claim 1 , further comprising an intermediate layer between the first layer and the second layer, and the second layer is positioned on a user side of the antibacterial mask. 
     
     
         14 . The antibacterial mask according to  claim 13 , wherein the first layer and the intermediate layer include the plurality of first piezoelectric yarns, and the antibacterial mask further comprises:
 a plurality of second piezoelectric yarns that generate a second charge by stretching arranged in the second layer, the second charge being opposite the first charge.   
     
     
         15 . The antibacterial mask according to  claim 14 , wherein the intermediate layer further includes the plurality of second piezoelectric yarns. 
     
     
         16 . The antibacterial mask according to  claim 13 , wherein the first layer includes the plurality of first piezoelectric yarns, and the antibacterial mask further comprises:
 a plurality of second piezoelectric yarns that generate a second charge by stretching arranged in the second layer and the intermediate layer, the second charge being opposite the first charge.   
     
     
         17 . The antibacterial mask according to  claim 1 , wherein the filter portion has a shape that covers only a mouth of a user. 
     
     
         18 . The antibacterial mask according to  claim 1 , wherein the filter portion is shaped so as to cover a mouth or a nose of a user. 
     
     
         19 . The antibacterial mask according to  claim 1 , wherein the filter portion is shaped so as to cover a mouth and a nose of a user. 
     
     
         20 . The antibacterial mask according to  claim 1 , wherein the plurality of first piezoelectric yarns are arranged into a plurality of first piezoelectric fibers, each of the plurality of first piezoelectric fibers containing a set of yarns of the plurality of first piezoelectric yarns.