N95 foldable respirator masks help prevent the inhalation of non-oil based particles during emergency situations. Adjustable nosepiece and inner foam lining form a comfortable seal around nose. Dual head strap is comfortable and provides an optimum fit. Individual masks are hygienically packed and lay flat for storage in an emergency or first aid kit. National Institute for Occupational Health and Safety NIOSH certified. Not intended for protection against silica or asbestos.