500 PSI Mask Defog cleans and defogs your scuba/snorkel mask at the same time, allowing you to focus on your adventure. It’s long-lasting, wet or dry application formula allows you to apply it before your first dive of the day and enjoy up to three dives that day without needing to re-apply. Less work, more fun. And with the convenient 2 oz travel size, it won’t take up too much space in your gear bag.

New to mask defogging? A little goes a long way. A dime-size amount in each lens will do the trick. Rub it in with your finger (no gloves) and rinse.