SR 580 Protective helmet is equipped with adapters and knobs to enable usage together with welding shield SR 584, 2/3 visors, gold visor and lamp bracket. Can be used with the battery-powered SR 500 or SR 700 fan and approved filters are included in the Sundström fan-assisted respiratory protection device systems. The breathing hose of the helmet is connected to the fan, equipped with filters. The pressure generated in the visor prevents particles and other pollutants from entering the breathing zone. The SR 580 can also be used with the SR 507 compressed air equipment. This combination forms a breathing apparatus designed for continuous air flow, for connection to a compressed air supply.