This mask is different from other competitors.it is independently developed by our company and applied for patent. When it is used up for the first time,you only needs to change the filter layer,the inside bracket can be recycled, even if wearing glasses,it will not fog.
China's Ministry of commerce while list enterprises
Brand Name: DUOLING AIR
Material:
Component content:Non-woven fabric,melt-blown fabric ,Filter cotton,Edible grade PP.
Style: head wearing
Executive standard:GB2626-2006/EN149
BFE
≥98%
BFE≥98%
Prevent PM2.5;
Block droplets,pollen, dust; Bacteria
Skin friendly fit.
Quality certification:CE FDA ISO13485
Place of Origin: zhejiang,china
Sample: Sample free&freight charge collect(can return when you make order)