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January 2016    Download the Entire Issue (PDF) Vol. 31, No. 1   RSS Feed for Undercurrent Issues
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Why These Readers Refuse to Give Up Their Spare Air

from the January, 2016 issue of Undercurrent   Subscribe Now

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In our November story "Do Divers Need a Spare Air?," we postulated that it's not a necessary piece of gear because it just adds bulk and is one more potential complication, especially if you're diving at reasonable depths. It may also encourage some divers to get dangerously low on air and have to rely on the Spare Air's very limited capacity to surface.

Several subscribers wrote in to disagree. Daniel Spitzer (Piermont, NY) says, "I have tested it underwater, and at 60 feet, I can get 17 to 20 breaths. Put another way, because my typical air consumption, when not panicked, is less than one cubic foot per minute, a Spare Air should give me about three minutes to get to the surface. Assuming I panic and hyperventilate, it still would give me well over a minute."...

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