One of the hidden features of the H2OGems Scuba system is the lens material. Unlike cheap glass that creates thermal bridges (causing condensation), H2OGems uses tempered optical glass with a thermal barrier. This keeps the inside lens temperature closer to the ambient air, drastically reducing the "misting up" that ruins dives.
While recreational divers are the target market, H2OGems has seen rapid adoption in niche sectors: h2ogems scuba