Features:
- Filter out fine particles including viruses, mold spores and asbestos
- Three dimensional mask with lightweight structure for easy breathing
- Adjustable nose bridge and elastic ear loop has enough elasticity to make a good seal
- Multilayer protection, can filter out dust, germs, smoke and almost 98% particles in the air
ASTM: ASTM Level III (Fluid Resistance mmHg 160, BFE > 98% PFE > 99%)
