The iEvac is the only American certified Smoke/Fire Hood. Protects against carbon monoxide, hydrogen sulfide, smoke, ammonia, chlorine, tear gas and more. The iEvac has a HEPA P100 filter that protects against biological agents and radioactive particles. The iEvac can withstand up to 1,700 degrees F in radiant heat, is maintenance-free, twin filters for easier breathing, one universal size, quick and easy donning. Designated as Qualified Anti-Terrorism Technology by U.S. Department of Homeland Security.