JetPilot Body Glove Adult Cirrus Purge Combo Pro Snorkel Mask Nose purge for easy clearing of water from the mask. Tempered glass lens meets all ANSI standards. Tri-view single lens provides wide field-of-view. Liquid silicone facial skirt and strap provides soft and comfortable fit. Purge valve for easy clearing of water from the snorkel. Submersible dry to prevent water entering into the tube. Silicone patterned mouthpiece for extra comfort. Pre-bent flex section reduces jaw fatigue.