This N95 Respirator Mask is designed to protect the wearer from particles or from liquid contaminating the face. It's made in the USA, disposable, UV sterilized and filters at least 95% of 0.3 microns of particles in the air. It features 5 layers; 2 layers of melt blown - 1, 50GSM and 1 25GSM, 1 layer or air cotton and 2 layers of non-woven. Manufactured alongside masks being donated to frontline workers, sold to hospitals, nursing homes and other medical facilities. Sold blank. Please note, due to the nature of this item there are no refunds, exchanges or returns. All sales are final.