| http://www.w3.org/ns/prov#value | - In addition to the removal of black smoke and white smoke for protection against them, the canister to be used in the present invention can remove noxious gases generated during fire such as carbon monoxide, cyanic acid gas, hydrogen chloride gas, chlorine gas, ammonia, benzene, acrolein and other aldehydes, nitrogen oxides, and the like, for protection against such noxious gases.
|
