Why do diving goggles fog up? How to prevent new diving goggles from fogging up?

Diving was originally an activity for underwater exploration and salvage, but now it has developed into an underwater leisure activity. There are many types of diving, including free diving, deep diving, snorkeling, etc. There are also special diving certificates that can be taken. Diving goggles are essential equipment for diving. They have the function of protecting the eyes and need to be defogged before use. Why is this?

Why do diving goggles fog up?

The pads on the skirts of diving goggles are now made of silicone. Silicone is exposed to air for a long time, causing it to change color and lose its elasticity. So manufacturers will apply a chemical film on the mirror to protect the mirror surface to prevent the silicone from changing its properties. This protective film will make new mirrors fog up easily. Washing the mirror surface in warm soapy water can remove this chemical protective film.

Therefore, in order to ensure underwater safety and comfort, every diver has a designated action before entering the water - defog the mask.

How to prevent new diving goggles from fogging up

Clean the inside of the lens with toothpaste

When applying toothpaste, you can use a soft toothbrush or clean fingers. Do not leave any grease on your fingers, which will affect the cleaning effect. After that, clean the mirror. Note that the toothpaste should be non-gel type, as gel type does not contain enough abrasive.

You can also use household cleaning agents, but be careful that the cleaning agents are completely rinsed off, otherwise it is easy to leave residues, which can irritate the user's eyes.

Anti-fog agent

There are special anti-fog agents for diving goggles, which can effectively prevent fogging during diving.

Drop a little anti-fogging agent on the inner surface of each lens, evenly apply it on the inner surface of the entire lens, and then rinse with clean water. Of course, the cheapest anti-fogging agent is our own saliva, such as anti-fogging agent, as long as it is enough, the effect is the same.

Fogging can also be avoided by paying attention to good habits when diving. For example, do not exhale through your nose to avoid water from the mirror as much as possible. Of course, the most important thing is the correct facial contour of the mirror.

Diving precautions

Drink plenty of water before diving

Because the compressed air we breathe when diving is filtered out of water to protect the diving equipment from oxidation, making people feel dry. And such dry air will consume twice as much water as normal breathing for each breath from the regulator, which actually increases the loss of water in the body.

Don't drink alcohol

Alcohol is a diuretic, it will inhibit the release of some hormones that control the water content in the body. But it doesn't mean you can't drink it, just drink less and know when to stop!

Avoid caffeinated beverages

A cup of coffee is mostly made up of water, but caffeine contains diuretic ingredients, which will accelerate the excretion of water in your body in the form of urine, affecting the hydration of our body. And caffeine is hidden in a variety of foods or drinks that you may not imagine. Many popular light drinks contain caffeine, cola, tea and chocolate also contain caffeine, all of which have diuretic functions.

Stay warm

Feeling cold will make you feel the urge to urinate. If you feel cold, you can wear a hood and cold-proof clothing in the water.

Eat more carbohydrates and less protein

When diving, don't eat too much meat or protein. The body needs a lot of water to digest protein. The water and energy required to digest protein are more than the energy and water provided by the food itself. Carbohydrates are foods that don't require too much energy to digest, such as oatmeal and whole wheat bread, which will help you keep your body hydrated.