We have 3 ply and 4ply (including nanosilver layer killing up to 99% bacteria) and Nanofit (is the same with 4 ply mask but has 50 filters for 50 days) We have certifications of FDA, CE, BFE, ISO, ISO 13485, etc. for each product. Our price are best with the quality We are Tecomen Group in Vietnam one of the Vietnam's biggest OEM and ODM manufacturer for the international market.
