This sr 580 loose fitting hard hat with sr 584 welding face shield, paired with sr 500 belt-mounted powered air-purifying respirator (papr) protects against particulates, gases and vapors or a combination of both. It is designed to be used in oxygen sufficient and non-immediate dangerous to life and health environments. The sr 500 papr system functions as an alternative to air purifying respirators (apr) in all situations for which these are recommended. This applies particularly to work that is hard, warm or takes a long duration. The sr 580/ sr 584 also protects against radiation and spatter during welding, flame-cutting, grinding and similar work. The design makes them useful for work in confined and inaccessible areas. Accessories in the form of automatic welding lenses, correction lenses, neck and chest protection and hose protection.