SEAC No Fog Masks: How a Mask That Resists Fogging Works

You're a few minutes into a great dive, and your mask fogs up. So you stop, flood it, clear it, and hope it lasts. Most divers know that routine.

SEAC makes a line of masks built to skip it. Here's how they work.

What makes them different

Fog is tiny water droplets that cling to the lens. SEAC treats the glass so water spreads across it in a thin clear film instead of beading up. Their lenses go through a plasma treatment, and SEAC applies it twice.

The treatment is on the lens itself. That means no spray or gel to add before each dive.

How to activate the lenses

It's simple. Wet the lenses, then gently rub the inside of each one with your fingertips. Rinse, and you're ready.

One thing to know: the treatment is meant to do its work once the lens is wet. Check the instructions that come with your mask for the full steps.

Three models, three kinds of divers

Clear: A compact frame. A good all-rounder.
Pura: Frameless, single lens, built to give you a wide field of view. It comes in several colors.
Wild: A lower-volume design aimed at freedivers and spearfishers.

All three use hypoallergenic silicone skirts and tempered glass lenses.

A fair word on the claims

SEAC and the stores that sell these masks describe the effect as long-lasting. We'd suggest treating any mask like any piece of gear: rinse it after dives, store it carefully, and keep an eye on how it performs over time.

The right mask is also the one that fits your face. A mask that leaks will bother you more than one that fogs, so try it on before you commit.