FDA Approved Disposable masks. 3 ply filtration system. Sold in boxes of 50, must order 3 boxes or more. Case quantities only. A mask is a loose-fitting, disposable device with a adjustable metal strip that can bend to fit the nose that creates a physical barrier between the mouth and nose of the wearer and potential contaminants in the immediate environment. Given the wide demand, fluctuating air rates, and urgency to deliver these products, both items do not qualify for under EQP level of pricing.