Getting ready for a dive is more than just putting on your gear. A mask that is prepped right, and that stays clear instead of fogging up, makes a real difference once you are down there. Here’s how we do it, so you get a clear view underwater.
Mask preparation steps
1. Pre-dive cleaning
Before your dive, clean the mask’s lens with a mild detergent or a mask cleaner. A new mask has a thin film left over from the factory, and that film is the main reason it fogs.
2. Toothpaste rub
Rub a small amount of plain (non-gel) toothpaste on the inside of the lens, then rinse it off well. This scrubs away the leftover film and is an old trick that works.
3. Defog solution
Apply a defog solution to the inside of the lens, spread it evenly, and rinse off the excess. It stops condensation from building up while you dive.
4. Proper mask fit
Your mask should sit snug but comfortable against your face. A good fit keeps water out, and less water inside means less fogging.
5. Avoid touching the inside lens
Your fingers leave oils on the lens, and that brings the fog right back. Hold the mask by its frame or strap instead.
Preventing fog during the dive
1. Spit and rinse
Yes, the old spit trick really works. Spit on the inside lens, rub it around, then rinse with a little seawater. It leaves a thin film that keeps the fog off.
2. Baby shampoo solution
Mix a drop of baby shampoo with water, wipe it on the inside lens, and rinse it off. It leaves a water-repellent layer and won’t sting your eyes if a bit leaks in.
3. Commercial anti-fog products
You can also pick up anti-fog products at most dive shops. They put a barrier on the lens that stops fog. Just follow the instructions on the bottle.
4. Mask clearing technique
Learn to clear your mask, that is, letting a little water in and then blowing it out, so water doesn’t pool and start fogging the lens. We’ll practise this with you in the pool.
5. Avoid heavy breathing
Slow, calm breathing keeps moisture from building up inside the mask. It’s good for your air supply too.
6. Anti-fog gel or spray
Anti-fog gels or sprays last longer than most options. Put them on a dry lens, rub it in, and rinse just before you dive.
Prep your mask well and use a couple of these fog-prevention tricks, and you’ll spend the dive looking at fish instead of fog. See you in the water.
