Double-Tube Full Face Snorkel Mask: The snorkeling gear for adults is a dry top system snorkel mask. The snorkel set uses one-way valves and a separate breathing chamber ensures fresh air is always circulating through the mask. You avoid the exhaled carbon dioxide from being re-inhaled effectively, and prevents the suffocation and hypoxia caused by the accumulation of carbon dioxide. Extremely suitable for beginners, Even for inexperienced swimmers, this snorkel mask full face will make a great fit.
Dry Top Anti-Leak System: This full face snorkel mask uses food-grade silicone to wrap your entire face completely and achieve a leak-proof effect. Double floating bead designed, when the air intake pipes sink under water, the floating beads will rise to prevent sea water entering the mask. If water enters the snorkel mask due to incorrect wearing, you can spit out the water with your mouth, or you can raise your head to let the water drain from the dive mask drain valve.
Upgraded Anti-Fog Design: This swimming mask provides 2 breathing intake tube valves and 1 independent exhaust valve that stop the top snorkel mask from fogging up. O₂ enters through the double breathing tubes and the exhaled CO₂ exits through the front of the mask, not passing through the field of view, your breath doesn't create fog. At the same time, there is an anti-fog wipe for each snorkeling mask, wipe the mirror inside the snorkel mask before use, and it can help you maintain a view effectively.
180°HD Panoramic View: Uses advanced PC optical mirrors, which will not distort your vision and eliminates dizziness and discomfort underwater. The 180 degree HD panoramic flat mirror provides you with a larger and clearer view. Equipped with a sports camera stand in the top of the snorkel mask, allowing you to clearly capture every wonderful moment underwater.
How To Choose The Size: Be sure to measure from the bridge of your nose (between your eyes) to the tip of your chin. Measure along the side of your nose, not over the top. If less than 4.7 in then please select size S/M, if more than 4.7 in then please select size L/XL. Generally S/M is for women and teenagers（Also applies to older kids）, L/XL is for men. Please choose the suitable size.
The Maoyea Full Face Snorkel Mask is a sensational customer favorite, and we hope you like it just as much.