Fix Foggy Goggle Problems, Forever

SCUBA Diving

Ranelle Ivens


Ranelle’s addiction to SCUBA started in 2004. From a young age she has been fascinated by the ocean and the creatures living within it. Her Ultimate dive dream is to swim with Orcas and to dive the world. Ranelle is a certified PADI Specialty Instructor and spent 3 years in university studying Science and Biology.

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Ever went diving and had to continuously put water in your mask to swish around, just so you could clear all the fog out. Only for that fog to come back 2 minutes later so you could repeat the process. And you are diving for 45 minutes so eventually, you just give up and start squinting through it. Then your guide points out a frogfish which you’ve been dying to see… but them darn foggy goggles are foggy again. Yeah, no one likes that crap.  Which is why there are a few things you should know if you often suffer the foggy goggle issue.

I can’t see through the Fog

Just about every diver has had the foggy goggle problem at least once. Though it doesn’t leave you totally blind, a foggy mask can be really annoying while diving. Especially when trying to enjoy observing the behaviours of seahorses or other marine animals. There are a couple of reasons a mask might get foggy. The most common problem being that it wasn’t defogged well enough before diving, and the second being that the mask has not been treated properly. Here’s how to fix it.

Defog, Defog, defog,

Before each dive, you need to defog that lovely viewing window we call a mask. To do so is quite simple, put a defogging agent onto the inside of your mask rub it around and rinse it out. The trick being not to wash all the defog out of your mask, just enough that it won’t get into your eyes. Then, and this is the most important part, put your mask on your face right away and don’t take it off. This way the defog will not dry out and you are less likely to rinse your mask… again.


If you are wondering what to use a defogging agent there are many great options, and all do the trick. Though I, of course, prefer you use an ocean/earth-safe option as there is enough pollution in the ocean already.

  • SCUBA defog: there are many brands out there such as Frog Spit, Reef Safe Biodegradable Anti-Fog, and many other, each will stop your foggy goggle problem.
  • Toothpaste: also leaves your mask smelling minty fresh
  • Liquid Soap: typically dish soap or shampoo is used, but any liquid soap will work. I recommend finding an earth-friendly baby shampoo, as it will be ocean safe and no tears.
  • Mermaid Spit: Wondering where to find the mermaid? Look no further than your mirror. You are the mermaid I’m talking about, and yes, your spit will work wonderfully as a defog (it is also earth-friendly, bonus!)

 I defogged, defogged, defogged, and it’s still a foggy goggle!

If the defog isn’t working, it isn’t the defog that’s the problem; it’s your mask. Don’t freak out though, you don’t need to go buy a new mask, you just need to treat the one you’ve got. When masks are manufactured, the company will put a thin layer of film on the inside of the mask. This protects it from scratching, but it also makes your mask fog like crazy. To make it stop you obviously need to get rid of that layer. There are two simple ways of doing this.


More Toothpaste, please!

Toothpaste is once again the answer to our problems, defog treatment, gingivitis, teeth whitening it does it all! To start your treatment find a white paste toothpaste (not the newer gel toothpaste) and smear and healthy layer on the inside of the mask. Allow it to sit and overnight and dry before washing it off. Note that you may need to repeat this process 2-3 times, and you will still need to defog your mask before each dive, or you could still get a foggy goggle.

Burn, Baby, Burn!

Though you don’t need to create a disco inferno in your mask, burning the film on the inside is, in my opinion, a sure-fire way to treat your mask (pun intended). All you need is a lighter and some water. It is a good idea to wet your mask beforehand. Though it is not necessary, it will help protect the skirt inside your mask. To treat it, light your lighter and pass it over the inside of the mask, burning the film off. You will see black soot forming, this is good and means that it’s working. It is very important that you do not hold the lighter in one spot for more than a couple seconds. The heat from the lighter can melt the silicon skirt on the inside of the mask so you need to be aware. After burning it let the mask cool off before washing away the soot, then burn it again. though it shouldn’t be necessary, it will help ensure you didn’t miss any spots. If you don’t feel comfortable burning your mask yourself, remember you can always ask a dive professional for help. Most shops will do it for you free of charge even.


If you have followed my instructions correctly you should have a beautifully clear and fog free mask! Woo-Hoo! Now you can see all those little ocean wonders! If you are still experiencing the foggy goggle problem leave me a comment and I can try to help you as best as I can. Feel free to send an email instead if you’d prefer.

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