The beauty of the Sundström system is that many half masks and full face masks can be fitted with compressed air attachments, rendering them positive pressure respirators. Using this adaptor attachment means that no permanent modifications are necessary — the attachment fits like a filter. The SR307 is also used with the SR63 supplied-air hood.
The SR 307 compressed air attachment is designed for connection to Sundström half masks and full face masks. This combination forms a breathing apparatus designed for continuous air flow, for connection to a compressed air supply. The SR 307 is an accessory that enables a given face piece to be used as either a filtering device or a protective device supplied with compressed air. The compressed air attachment is especially intended for applications involving heavy and sustained work in environments in which the pollutants have poor warning properties or are particularly toxic.
The SR 307 is made of a material which is not liable to give rise to frictional sparking, which enables the attachment to be used in an explosive or flammable environment. The flow meter and warning whistle for temporary and continuous monitoring of the air flow rate are included. Control valve mounted on the user’s belt is included.
- Belt and belt mounted control valve (Regulator) (R03-1510 and R03-1001)
- Breathing Hose (airline between belt and mask) (R03-1003)
- SR280-3 Mask filter adapter (attached to mask where filters would normally fit) (H09-0212)
— Belt mounted, minimal size — Extra outlet for air tool — No modifications to masks required — Warning whistle if air supply drops