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 facepiece 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 attachment can 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.

Adjustable air volume 150-300 litre/minute with working pressure between 4-10 bar at the air-regulator.

In accordance with EN 14594:2005. Class 3A together with half mask. Class 4A or 4B together with full mask.