4-layer high-effective filter the bacteria structure.
First layer–Double soft non-woven 70g, Absorbs dust, odors and harmful particles.
Second layer–ES Hot air filter cotton 50g, pre-filtering the particulate matter and bacteria.
Third/fourth layer–Meltblown non-woven 25g, thicker than the others, that filters more than 98% of bacteria.
Fourth layer–Skin-friendly non-woven 50g, not only filter particulates but also friendly to sensitive skin.
Conforms with ASTM F2100 level1
Conforms with EN14683 Type 2
Free Delivery with FedEx to one address USA or Canada
Supplied in poly bags of 3 per bag. 288 bags per carton, Total 864 masks per carton.