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April 2020    Download the Entire Issue (PDF) Vol. 35, No. 4   RSS Feed for Undercurrent Issues
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Avoiding Any Infections from Scuba Equipment

are you confident your regulator remains pathogen-free?

from the April, 2020 issue of Undercurrent   Subscribe Now

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Covid-19 infection from others must now be at the focus of keeping your gear clean, especially if you are using rented or borrowed scuba equipment. Carrying your own mouthpiece may bring peace of mind, but remember that the air you inhale has rattled around inside the body of the second stage of the regulator before it gets to you. You need to be confident the regulator remains pathogen-free, especially if it's rented.

You see, in closed-circuit equipment, the rebreather counter-lung mirrors the user's own lungs, so it is essential that no lung infection gets introduced into the closed circuit. The medium of choice, as recommended by major CCR manufacturers, appears to be a 1:100 solution of ChemGene HLD4L. One should soak counter-lungs and corrugated breathing hoses in it to kill any pathogens, then thoroughly rinse in potable fresh water....

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