Rating: 500psi Mask Defog is great!!!
Reviewer: Wayne Stoller,
I have tried several defog products but prefer the 500 psi Mask Defog over all of the others, so now I have one for my dive bag, one for my snorkel bag, one with our pool goggles and a spare one in my suitcase. The carabiner allows you to attach the bottle to your dive bag so it doesnt get lost among your dive gear plus this makes it always handy. Letting others on a dive boat use some 500psi Mask Defog has resulted in numerous comments "this product really works good, were did you find it?" My reply was "Check Scuba.com."
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1 out of 2 people found this review helpful.
Rating: 500psi Mask Defog
Reviewer: Nicholas Liberti, - View all my reviews
I was amazed with the durability of this product. I received it before my diving adventure to the Florida fresh water springs. I was please as how well it performed in the caverns where the humidity was very high. I feared the extreme humidity would default the solution prior to getting under way. Once again, thanks Scuba.com for making my diving adventure a success!!
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8 out of 20 people found this review helpful.
Rating: works well!
Reviewer: Namita S., - View all my reviews
The last time I went snorkeling, I had many many fogging problems so I thought I would try a new defogger - this got pretty good reviews and when I tried it out, I must say I was pretty impressed at how good a job it did. No fogging problems at all!
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25 out of 50 people found this review helpful.
Rating: Nice, but a little gimmicky
Reviewer: Mark S., - View all my reviews
I am not one to use anti-fog products. I am usually fine with a little baby shampoo cleanse between dives or some good old fashioned saliva. I carry this with me in my mask bag for others not so enlightened who feel science has improved upon or is more hygienic than what comes out of our bodies. Cant really speak to its effectiveness, but its always nice to have an extra Caribiner lying around and it came free with a really groovy new mask.
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47 out of 87 people found this review helpful.
Rating: Mask fogger
Reviewer: GARY WEDDELL, - View all my reviews
I have not had much good experience with anti fog treatment to my mask when open water diving but, this was easy to use and worked to perfection. My son and I both agreed it was worth getting and kept our vision perfectly clear for each dive this trip
Gary W
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44 out of 88 people found this review helpful.
Rating: it works perfect
Reviewer: Emilio Vega,
It works perfect...no need for saliva anymore...lol
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4 out of 10 people found this review helpful.
Rating: 500psi 2oz Sport Bottle Scuba Dive Mask Defog with Carabiner
Reviewer: Jose G.,
Works pretty good.
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13 out of 27 people found this review helpful.
Rating: DeFog
Reviewer: Shawn Reichhardt, - View all my reviews
Worked great!
Questions and Answers for 500psi 2oz Sport Bottle Mask Defog with Carabiner:
Mike:
My snorkeling mask always fogs up. What should order to fix this issue? Please let me know. Thank you.
Bill (Certified Scuba Instructor at Scuba.com)
:
Make sure to scrub the inside of the mask lens with some toothpaste to clean it. Then using this defog prior to using the mask in the water should work well.
FULL MANUFACTURER’S WARRANTY 
Nice, but a little gimmicky 
500psi 2oz Sport Bottle Scuba Dive Mask Defog with Carabiner 
