Recreational Diving (Within no-deco limit and without overhead enviroment)
Open Circuit
Level 1: OC Single BM (Air/Nitrox)
Level 2: OC Twinset BM / Double SM (Air/Nitrox)
Technical Diving (Outside no-deco limit and/or with overhead enviroment)
Open Circuit
Level 3: OC Twinset BM / Double SM (Air/Nitrox) + 1 OC Stage bottle (Deco gas)
Level 4: OC Twinset BM / Double SM (Nomoxic Trimix) + 2 OC Stage bottles (Deco gas)
Level 5: OC Twinset BM/ Double SM (Hypoxic Trimix) + >= 3 OC Stage bottles (Travel + Deco gas)
Closed Circuit Rebreather
Level 3: CCR BM (Oxygen + Air) + 1 OC Bailout bottle
Level 4: CCR BM (Oxygen + Nomoxic Trimix) + 2 OC Bailout bottles
Level 5: CCR BM (Oxygen + Hypoxic Trimix) + >= 3 OC Bailout bottles
- OC … Open Circuit
- CCR … Closed Circuit Rebreather
- BM … Backmount
- SM … Sidemount