IST Pro-Ear 2000 Scuba Dive Mask - ProEar Swim Mask
The original Pro-Ear was created after 5 years of Research and Development in Israel, USA and Taiwan. This mask is a high quality, low volume mask which is made from the highest quality liquid injected silicone and polycarbonate plastics.The IST Pro-Ear 2000 provides a break through in diver safety and comfort. This is the first system that effectively allows the diver to dive while keeping the ears dry, protecting them from dirt, dampness and painful ear infections. The IST Pro Ear 2000 also prevents "swimmers ear" and other potential injuries.The IST Pro-Ear 2000 is made of a high quality silicone with two silicone ear covers, and a double skirt edge that seals off the corrugated tubes connecting the ear covers to the mask.In addition to standard mask functions, the ear cups keep the ears dry, protecting them from pollution and cold. This mask is made of the only the finest materials from high-grade black silicone to tempered glass lenses.Mask fits moderately narrow to moderately wide faces.Beware, cheap imitations are soon to follow, Ask for the Pro Ear from JoeDiver.How the Pro Ear 2000 Scuba Mask Works:The ear cups cover the ears forming a water tight seal (Once properly positioned and taking care to take out all excessive hair).Air is allowed into the ear cups when exhaling through the nose into the mask and then through the thin tubing which runs from the mask skirt into the ear cups passing through non return valves in the tube and into the ear cups. This allows the air space in the ear cups to equalize according to ambient pressure. The mask, ear cups and indeed the entire respiratory system become a closed circuit equalized air pressure system.The ear cups serve as a primary filter of ambient water pressure from the sea and the tubes mimic the Eustachian tubes allowing the diver to easily equalize the pressure in the ear cup before it ever reaches