10 Best Diving Mask Defoggers 2026

As diving and snorkeling enthusiasts, we know how frustrating it can be to have a foggy mask during an adventure. That's why we've reviewed and scored many products in the Mask Defoggers category, ranging from a 7.3 up to an impressive 8.7. But the top contender that stole the show is the STREAM 2 SEA Mask Defog. This reef-friendly defogger coating is perfect for glasses, snorkel masks, scuba divers, ski goggles, and sports glasses equipment. Say goodbye to foggy lenses and hello to crystal-clear underwater views. Trust us, you won't want to dive without it. Keep reading to learn more about our top 10 picks for diving mask defoggers.