The Double Exhaust Kit

The Double Exhaust System helps prevent a backflow of biological and certain chemical contaminants into the helmet. This sytem has been used successfully for diving in biologically contaminated environmennts. However, there are certain chemicals (i.e. Toluene, Acetic acid etc.) that will attack the rubber in the valves in the exhaust assembly. Be aware of what you are diving in! More information on contaminated diving and high-risk chemicals may be found in the publication "Diving in High-Risk Environements" by Steven Barsky

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AQUA AIR INDUSTRIES, INC.
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Harvey, Louisiana 70058 USA