Replies to post #17685 on Brownie's Marine Group Inc (BWMG)

[geodan]

SpareAir well known product is theirs https://www.spareair.com/

Spare Air - The life-saving mini SCUBA tank.
A skydiver wears a reserve parachute, a SCUBA diver should have a reserve breathing system. For 40 years we’ve supplied divers with the smallest, most-compact redundant system available for out-of-air-emergencies.