Condensation occurs on the inside of your mask lens when diving, if not treated with a defog solution this condensation will create a mist like you see on the bathroom mirror after a shower. This layer of water makes looking through the mask lens impossible. Proper defogging of your dive mask lenses is vital to an enjoyable dive. Using a defogger from a company that has built its reputation on diver's optics is a no brainer. Use only the best from Sea Vision. Sea Vision's Defogger comes in a handy 2 fl. oz. (59 ml) spray bottle. Just a small amount sprayed on your mask lenses will keep them clear throughout your dive. This non-toxic non-abrasive defog is specially designed for the CR-39 lenses found on the Sea Vision Ultra, 2100 and 2000 Masks (see SKU's: SVNMUBK, SVN21BK and SVNM2BK). CR-39 Lenses are common to the Eyeglass Industry and require a Non-Abrasive Defog to be used to properly Protect-the-Lenses. This feature makes this Defog Product the Product-of-Choice for all Dive Mask Lenses.



Date First Available: October 26, 2008. Best Sellers Rank: #258,257 in Sports & Outdoors. Customer Reviews: 4.1 out of 5 stars 79 ratings 4.1 out of 5 stars. : B0000BZKGM. Part Number: ?DEFOG. Brand Name: ?Sea Vision. Item Weight: ?0.15 Pounds. Item Dimensions LxWxH: ?4.5 x 1.2 x 1.2 inches. Package Weight: ?0.2 Pounds. Item Package Dimensions L x W x H: ?4.5 x 1.2 x 1.2 inches.