Elmridge Protection Products, LLC manufactures the iEvac Smoke/Fire Hood, the only smoke/fire Hood certified to the American National Standard and Certified to NIOSH 42 CFR 84. In addition, the U.S. Department of Homeland Security has Designated the iEvac as a Qualified Anti-Terrorism Technology. The iEvac unique filtration offers three layers of protection: • By-products of combustion including carbon monoxide, smoke & hydrogen cyanide (in order to protect against carbon monoxide you must add a catalyst to the filter that converts the carbon monoxide to carbon dioxide which is breathed out through the exaltation valve). Please note that a traditional filter offers no protection against carbon monoxide, the number 1 cause of injury or death in a fire situation. • Chemical agents such as; ammonia, chlorine, sarin and hydrogen sulfide • Biological agents such as: anthrax , smallpox, ricin and radioactive particles