TecRec » Tech-Rebr

Tech-Rebr
Tech-Rebr.jpg

Open-Circuit scuba uses mixed gas and air as the gas supplies, with air being the main gas supply for Open-Circuit scuba divers.

In Closed-Circuit scuba, oxygen and mixed gas are used as the gas supply for the diver.

In Semi-Closed Circuit scuba, mixed gas is used as the gas supply.