3M Supplied air respirators require a source of clean breathing air such as plant air systems or bottled air. This clean, breathable air can be delivered to hoods, helmets, full facepieces, half facepieces and loose fitting facepieces. Supplied air respirators offer many features over traditional respiratory protection, such as cooling or heating incoming air; fit testing only required for tight fitting facepieces; and low maintenance. Complete systems include a supplied air hose, an air regulating valve, a breathing tube, and a helmet, hood, or other facepiece.

Potential benefits include:
A cost effective way to provide a high level of respiratory protection
No filters, cartridges, or batteries to maintain
Supplied air provides no additional breathing resistance to the wearer

Allows the worker to set the airflow to the most comfortable level. Includes the valve and waist belt. It is strictly a regulator and will not warm or cool supplied air to the worker.
Assembly includes:
Valve with Schrader fittings
Waist belt

The V 300SR includes a 1/4 in MPT, 1/4 in in body size Shrader fitting.

This product is made to order. Lead times for V 300SR Assemblies may be longer than other 3M Supplied Air Products.