CDC DESIGNATED SUITABLE ALTERNATIVE TO NIOSH-N95
4-Layer High-effective filter bacteria structure:
•First Layer-Double soft non-woven 25g. Absorbs dust, odors and harmful particles.
•Second Layer- ES Hot air filter cotton 50g. Pre-filtering the particulate matter and bacteria.
•Third Layer-Melt blown non-woven 25g. Thicker than the others, and filters more than 98% of bacteria.
•Fourth Layer-Skin-friendly non-woven 25g. Not only filter particulates but also friendly to sensitive skin.