The Ion 2 purge mask comes from a low profile family of scuba masks from Oceanic. It has the same great features as it's brothers and sisters including a low profile design, 100% liquid silicone skirt which provides both comfort and longevity, lightweight frame and the neoprene comfort strap. The one thing that it has that is lacking in the rest of the family is the high volume purge valve. The mask is already easy to clear as it is low volume but the purge valve makes it even easier.
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