5 Things to Know Before Buying a Scuba Mask

Anti-fog coatings wear off quickly They work for about three dives, then you are back to using spit or commercial defogger. Do not buy a mask based on anti-fog claims.

Fit matters more than anything else A soft, medical-grade silicone skirt that seals without pinching is essential. The frame should sit just inside your brow bone and below your nose without touching your upper lip.

Test the seal before buying Place the mask against your face without the strap and inhale gently through your nose. If it stays on by suction alone, it will not leak; if it falls off, move on.

Low-volume masks are easier to equalize A smaller air space inside the mask means less air to equalize when descending. This makes clearing your ears simpler and more comfortable.

Rinse after every dive to protect the silicone Salt crystals destroy silicone over time. A fresh water rinse after each session extends the life of your mask significantly.