A skydiver wears a reserve parachute, a SCUBA diver should have a reserve breathing system. For over 35 years we've supplied divers with the smallest, most-compact redundant system available for out-of-air emergencies. The patented SPARE AIR should be a standard piece of SCUBA diving equipment for the safety minded diver. In an out-of-air emergency, why would you trust your life to anything else? Explore the wealth of information about our product, and read stories from divers who are alive because of SPARE AIR.