Mask Defog

500 PSI Mask Defog is without question the clearest, longest acting and most effective defog on the market. In addition, cleans your mask each time you use it.  May apply with a wet or dry application. Consistency of thick toothpaste, and when applied to a properly prepared lens will typically lasts all day long. 

To prep your lense see 500 PSI Mask Scrub