What is the best way to defog a diving mask?

What is the best way to defog a diving mask featured

Why defogging is crucial for a diving mask

Scuba diving or snorkeling cannot be fully enjoyed if one has to keep removing their diving mask to clear up the fog that builds up inside it. This fogging occurs because of the temperature difference between the water and the air inside the mask. Apart from causing irritation and inconvenience, fogging can also be dangerous if it obstructs the diver’s vision, leading to accidents. Hence, it is crucial to defog a diving mask before entering the water.

Homemade defogging solutions

Seeking commercial defogging solutions every time you dive can be expensive. However, there are several homemade defogging solutions that one can prepare easily. Some commonly used ingredients include baby shampoo, toothpaste, and spit. Baby shampoo can be diluted with water and rubbed inside the mask before rinsing it off. Toothpaste can be applied inside the mask and rinsed off after rubbing it gently. Spitting inside the mask by divers is a common practice that has been found to be effective in preventing fogging.

Commercial defogging solutions

Several commercial defogging solutions are specifically designed for diving masks. These solutions can also be found in spray bottles, which makes them easier to apply inside the mask. Some popular brands of commercial defogging solutions are SeaGold, Jaws Quick Spit, McNett Sea Buff, and Aqua Sphere Anti-Fog. These solutions are alcohol and silicone-free, making them safe for the mask’s lens and the diver’s skin.

Tips for preventing fogging

While defogging solutions can prevent fogging to a great extent, taking some precautionary measures can further reduce the chances of fogging. One of the most effective measures is to ensure that the mask is thoroughly cleaned before applying the defogging solution. Avoiding touching the inside of the mask with fingers can also prevent grease and oils from building up and causing fogging. Additionally, breathing calmly and through the nose, and not through the mouth, helps reduce the amount of warm air entering the mask, thus reducing the chances of fogging.


A clear diving mask is essential for a safe and enjoyable diving or snorkeling experience. While there are several defogging solutions available, divers can save money by using homemade solutions. Taking precautions like cleaning the mask and breathing calmly can further reduce the chances of fogging. Irrespective of the solution used, divers need to avoid touching the inside of the mask with their fingers to prevent grease buildup. With the right defogging solution and preventative measures, divers can avoid the inconvenience of fogging and fully immerse themselves in the underwater world.

Jump to section