FDA Listed USA made Disposable Filtration Mask. This mask filters at least 95% of 0.3microns of particles in the air. 5 layers; 2 layers of meltblown- 1, 50 GSM and 1, 25 GSM, 1 layer of air cotton and 2 layers of non-woven. Manufactured along side masks being donated to Frontline Workers, sold to hospitals, nursing homes, and other medical facilities. Deposit will be required with every order: 50% at time of order and 50% before your order ships. Production times can vary. Please check at time of order. Headbands will be sent unless otherwise specified on PO. Please note, due to the nature of this item there are no refunds, exchanges or returns. All sales are final.