The first degreasing products on the market specifically designed for diving masks, new and used, which prevents fogging problems and no side effects.How to use itYou do not need to repeat the same procedure just before the dive.PHASE 1Spray directly the product on the inside and on the outside of the lenses and on the inner part of the silicone skirt. ( suggested quantity 7/8 ml)PHASE 2Scrub throughly for 4/5 minutes, with a toothbrush or cloth, the inner and outer surface of the lenses.PHASE 3Leave the product on the mask for 10 minutes and then rinse with fresh water.PHASE 4Repeat the whole procedure (Phase 1 + 2+ 3).