Made in the USA. Three Layer Construction. Soft and Breathable Fabric. Material: 3 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. Tekweld makes no warranties, either express or implied, that the mask prevents infection or the transmission of viruses or diseases. Washing instructions: Hand washing in cold water is recommended. If machine washed, use gentle cycle and cold water. For best results, hang dry.