The 3M™ Scott™ ProPak Sigma is a Type 2 open-circuit self-contained compressed-air breathing apparatus with an unpadded carrying harness.
Designed as a cost-effective solution with minimal padding, the 3M™ Scott™ ProPak Sigma is a compliance set for use in marine or industrial firefighting environments. The ProPak Sigma breathing apparatus consists of a backplate, unpadded carrying harness, and a pneumatic system that contains a cylinder connector, reducer, pressure gauge, whistle and demand valve. Designed for user convenience with adjustable shoulder straps, a wraparound harness and large buckles for easy operation with gloved hands and fast donning and doffing.