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Foggy Mask Lens is a common problem and a very annoying situation for every diver.
The anti-fog spray may temporarily solve the problem, but it has to be applied on each dive.

ISTʼs newest technology in Anti-Fog Lens Film makes you no longer have foggy mask problems!

Prior to the first time using, simply remove the matte protective film inside of the mask. Rinse with water before each dive for a better experience. Treat with care, avoid of cut, scratch and high temperature. Clean with fresh water instead of detergent and cleanser.


  • Corona has been one of the most popular IST masks and its superior fitting and comfort are the reasons behind the success.
  • Its swivel buckle allows the diver to adjust the mask to the most desirable position.
  • The low internal volume gives unrestricted view.