grouper_getter
Guest
I am not certified to dive but was wondering if i could use a product like spare air or the H2ODYSSEY Extra Air Source to lengthen the time i can "freedie". How easy is this product to use and refill?
Welcome to ScubaBoard, the world's largest scuba diving community. Registration is not required to read the forums, but we encourage you to join. Joining has its benefits and enables you to participate in the discussions.
Benefits of registering include
grouper_getter:I am not certified to dive but was wondering if i could use a product like spare air or the H2ODYSSEY Extra Air Source to lengthen the time i can "freedie". How easy is this product to use and refill?
I agree...Spare Air was not designed for that use and could prove fatal. Don't dabble in that if you don't know what you are doing. My spare air is right next to my spare regulator and it's sole use is in an emergency. if you want to spend longer under water get yourself on a course and get qualified.pilot fish:Don't even think about it! Get certified first and get a number of dives under your belt and then think about that stuff.
grouper_getter:I am not certified to dive but was wondering if i could use a product like spare air or the H2ODYSSEY Extra Air Source to lengthen the time i can "freedie". How easy is this product to use and refill?
Alex777:It might be worth posting a simple explanation:
If you freedive to, say, 33 feet and then take a breath from your Spare Air, you are taking in double the volume of air that the same breath would have provided at the surface. This is because of the pressure of the water at depth. As you ascend while holding your breath, the water pressure declines and the volume of air in your lungs expands accordingly. The expanding air will cause your lungs to expand also, resulting in a "lung overexpansion injury". The result, as everyone else has stated, is likely to be - DEATH.
DON'T DO IT! EVER! DON'T EVEN THINK ABOUT IT!