HOW TO SET UP THE SNORKEL ONTO THE MASK? Hook it up on the left side with the writing on the bottom of the snorkel facing forward DOES THIS MASK LEAK? If you do not have thick facial hair as same as Karl Marx, then it will not leak. WHAT IS THE WORKING PRINCIPLE OF THIS MASK? There is a plastic ball which is in the top of tube for control the purge valve open or close by buoyancy of water. The valve opened to provide oxygen when inhale,closed to prevent water into when exhale. WHY CHOOSEN MIKPHONE? Our factory focus on outdoor products for many years, we never stop to try to created more and more useful things for outdoor lovers. We believe quality is what counts most, so we promise you a fully charge refund if you have any issue about the quality of our item. PRODUCT DETAIL Item Weight:1.1lbs Material:FDA silicone mouthpiece Goggles:Anti fog tempered glass Strap:Adjustable strap,strong and pliable Purge valve:The valve opened to provide oxygen when inhale,closed to prevent water into when exhale. PACKAGE LIST 1*mask 1*snorkel
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