All-in-one System

Aquabreather is a single-block All-in-one System.

There are no oxygen cylinders in Aquabreather. A brilliant solution for the bulky equipment challenge. The unique design of Hydroid Aquabreather allows us to combine all the components of an underwater breathing apparatus in one unit. A full face mask is equipped with a valve system to prevent moisture from entering the breathing circuit (the volume of which is 6 liters). The Aquabreather’s optimal dimensional ratio and ideal mass balance will allow you to forget that it was ever put on, and you will get great pleasure during the dive. Only you and the ocean.

RRC Cartridges

RRC — watertight Replaceable Regenerative Cartridges.

Each Hydroid Aquabreather is equipped with two reactors to accommodate regenerative cartridges. The reactors are cylindrical in shape and made of fluoroplastic (PTFE). A screw cap with a moisture-resistant gasket reliably fixes and seals cartridges against water entering the circuit. You only need to place a cartridge in the reactor and tighten up the cap. This allows you to complete the entire cartridge installation process in a split second.


GASystem (Gas Analyzing System) analyzes the breathing mixture in the circuit.

In order to monitor the composition of the respiratory mixture in the circuit, Aquabreather uses a system for the analysis of the partial pressure of oxygen O₂ and carbon dioxide CO₂. The partial pressure parameters are displayed on the monitor in the Aquabreather’s visor and are clearly visible during the dive. Upon reaching critical parameters, the analyzer activates an audio and visual signal. The Aquabreather’s electronics is not a control system. It performs an informational function only.