3M W-Series Supplied Air Regulator Valves and Assemblies provide comfortable, cost effective respiratory protection for All-Day use. When used with approved 3M breathing tubes and 3M Versaflo (TM) headgear, can help regulate the air flow of a supplied air system. This is an economical system that provides single step filtration. It is designed to be permanently mounted to the wall.

• Low maintenance - no filters, cartridges, or batteries to maintain