for everyone and anyone who is passionate about the diving industry. Whether you’re a loyal attendee or this is your first DEMA Show, the Show is a MUST-attend event if you want to experience the latest industry trends and develop business and professional relationships in a face-to-face setting unlike any other.


275+ Education Sessions

26% of attendees are NEW to DEMA Show each year

85% of attendees come to DEMA Show to evaluate and demo new products

Submersible Systems, Inc.

Huntington Beach,  CA 
United States
  • Booth: 1261

Spare Air - The Diver's Reserve Parachute

"I never thought it would happen to me....but on the night I ran out of air, it nearly cost me my life," shares Larry Williamson, Inventor of Spare Air. Submersible Systems is the manufacturer of Spare Air, the Original Miniature Breathing Device for scuba divers. Spare Air is the obvious emergency system choice - it is easier than buddy breathing and simple to use. Just put Spare Air in your mouth and breathe. It's that easy. Log on to our website at to find out the ''21 Ways Divers Run Out of Air" and "Why Sharing Air is Not the Solution" as well as view over 100 Testimonials from real-life customers in real out of air emergencies. Join the Ranks - Over 300,000 discriminating divers like yourself have chosen Spare Air. Celebrating over 35 years of saving lives. SPARE AIR - BECAUSE SELF-RESCUE IS THE ULTIMATE BUDDY.