2 Pack -2 Oz Sport Bottle of 500 PSI Mask Defog with Caribbener

I became a huge fan of PSI 500 Mask Defogger when learning to scuba dive. My mask was brand new and even after trying all the tricks with tooth paste and using several defogger products from other divers nothing seemed to work. Another diver brought in PSI 500 and allowed me to try it. My mask didn't fog up once during my scuba lessons. During my open water dives the dive shop carried PSI 500 so I bought some there and all day long my mask stayed clear. I am very pleased to now have a big supply of it and to have a bottle I can clip to my BCD so I will always have it on hand. I highly recommend this product. I even use it on my kids mask at the pool too.

I have tried a lot of anti fog applications for my SCUBA mask and this is BY FAR the best one I have found. All it takes is a little dab on each side of your mask or goggles, rub it around with your finger for 10 to 20 seconds and give it a quick rinse and you are good to go. Each time I use it I go my entire dive without having the flood my mask to clear fog. I use a Dive Rite ES155 mask and have not done the usual scrub with toothpaste to get the coating off and with this defog I have no problems with fog. I'll be buying this for a long time.

I have used this brand for about 15 years now and it does not let me down. It will get thick if it gets too hot. I like the little carabiner on the tube allowing me to loop it to my dive bag and my BC . These little bottles can be refilled for a time or two also. A little goes a really long way. I used to think the more the better and now I know a drop works. Thanks for a nice size travel bottle

These bottles are the perfect size, not too small and not too big, to pack with you for either a boat dive or a shore dive. I have used the 500 PSI defog for over ten years and won't switch. Works very well and I like that it is gel so that you don't accidentally pour out more than needed. Very little needed to do the job.

We tested this in conjunction with the "Spit" brand, and all 3 of the divers found that with 500 PSI, we had pretty bad fogging issues. Using our own spit was far superior, and the "Spit" brand product worked even better than our own spit.

The best defog product on the market. Multiple dives with one use and the carabiner clip works great for easy access when I'm teaching classes. I use it even though the Dive shop I work at doesn't sale it!

Not impressed on my swim goggles. Also, I'm pretty sure it's just toothpaste--it certainly works just as well. I purchased a different product that makes this one basically useless. At least I got a couple of caribiner keychains...

seemed to work ok. We used them snorkeling on vacation in Hawaii.