Our premium-quality disposable Makrite 9500 N95 face masksare NIOSH certified(National Institute for Occupational Safety and Health). Makrite 9500 masks, are lightweight in construction to promote greater worker acceptance and help increase wear time. Makrite N95 masks are made of several layers of special non-woven polypropylene (synthetic polymer) fabric. This fabric is produced by melt blowing and forms the inner filtration layer in the N95 mask that filters out hazardous particles.