and the TAPR® was NOT designed for prolonged exposure to unknown environments

95 NBC-77 SOF® >99

and radioactive particulates

Durable bromobutyl rubber construction

NBC-77 SOF® 40mm NATO Filter For Gas Masks – CBRN Filter, 20 Year Shelf Life Color:Black and the TAPR® was NOTThe NBC 77 SOF is our flagship 40mm gas mask filter, designed to provide comprehensive respiratory protection against a wide range of chemical, biological, radiological, and nuclear threats. When combined with a compatible full face gas mask or PAPR, this NATO standard filter helps protect your airways from all known CBRN agents, toxic industrial chemicals, radioactive iodine, organic iodine compounds, and hazardous particulates. The NBC 77 SOF uses a