Filter and air-conditioning device

Abstract

An antibacterial mask that includes a filter portion having a first layer and a second layer, wherein the first layer includes a plurality of first piezoelectric yarns that generate at least a first charge by stretching, and the second layer is formed of an ordinary cloth and positioned on a user side of the antibacterial mask.

1 . An antibacterial mask comprising:
 a filter portion having a first layer and a second layer, wherein the first layer includes a plurality of first piezoelectric yarns that generate at least a first charge by stretching, and the second layer is formed of an ordinary cloth and positioned on a user side of the antibacterial mask.   
     
     
         2 . The antibacterial mask according to  claim 1 , wherein the first layer is a nonwoven fabric. 
     
     
         3 . The antibacterial mask according to  claim 1 , wherein the first layer is a woven fabric. 
     
     
         4 . The antibacterial mask according to  claim 1 , further comprising an intermediate layer between the first layer and the second layer. 
     
     
         5 . The antibacterial mask according to  claim 4 , wherein the first layer and the intermediate layer include the plurality of first piezoelectric yarns. 
     
     
         6 . The antibacterial mask according to  claim 4 , 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 intermediate layer, the second charge being opposite the first charge.   
     
     
         7 . The antibacterial mask according to  claim 1 , wherein the filter portion has a shape that covers only a mouth of a user. 
     
     
         8 . 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. 
     
     
         9 . 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. 
     
     
         10 . 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.