... With Steel Cylinder,Chemical respirator,Security with 100% Silicone mask Item standard1. 300Bar / 4500psi2. with EN136, EN1373. CE, approved 1. Main purpose and ... firefighting, rescue, lifesaving, safety and effectively to protect from thick smokes, toxic gases and oxygen deficiency, it is ... personnel respiratory protective device for fire-fighter and lifesaver 1.2 ScopeA.Atmospheric environment in ...