Made in the USA. Two Layer Construction. Soft and Breathable Fabric. Material: 2 Ply 95% Polyester 5% Cotton. Washable and Reusable. One Size Fits Most Adults. All Sales Final - No Returns The mask should not be used in any surgical setting or where significant exposure to liquid, bodily or other hazardous fluids, may be expected; in a clinical setting where the infection risk level through inhalation exposure is high; or in the presence of a high-intensity heat source or flammable gas.