500-PSI Mask Defog 2 oz
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500-PSI Mask Defog 2 oz

SKU: AQU5MD2 MFR: 506
(42)1 question, 3 answers
$12.95

Key Features

  • Enjoy crystal-clear dives with our 500-PSI Mask Defog, eliminating frustrating lens condensation.
  • Our biodegradable mask defog spray is safe for the environment and your valuable dive gear!
  • Quickly removes grime & residue; this mask defog ensures your dive mask offers optimal clarity.
  • Choose the perfect size! Available in both 2 oz and 4 oz bottles of our reliable mask defog.
  • Easy spray application makes our 500-PSI Mask Defog a breeze to use before any scuba dive.
  • Get the best view! This defog enhances lens quality for safer, more enjoyable underwater adventures.
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Questions & Answers

Daniel R : Is this now a spray? What happened to the old style squeeze bottle kind? Is it as effective and does the bottle last as long?Donald R : Bottle I purchased was a thick gel that had to be squeezed out.YAN G : This is a squeeze bottle.ROBERT P : The defog I bought was not a spray, it was the same old squeeze bottle.
Shopper : Why Did You Choose This?JEFF S : i never have a problem with fog since i started using this.THERESA M : Because I need itROBERT B : Great defogger, but you need to make sure any dirt, salt residue or suntan lotion is cleaned off the lens before you treat the surface. AND you need to make sure you rinse the lens with salt water very well. If you can see the defog on the surface of the lens, there is too much and needs to be rinsed better. Also, we found it best if you treat the lens just before you go into the water and thenm rinse them. Don't let the defog dry and then try and rinse it off.MICHAEL O : I've been using 500 psi for over 10 years, as an instructor, a diver, and at the local aquatic center. I recommend this defog highly.ANDREW M : Because I've never used anything betterPaul M : It works where others I have do not.Douglas C : Recommended by mask manufacturerRalph G : It cleans and defogs . Also it lasts for 2 tanksWYATT H : I've found it to be the best I've ever used.GARY S : recommended by dive instructorJENNIFER P : The BEST mask defog I have EVER used. I have NEVER had my mask fog up on me.PAUL B : Duped. Never again.PAUL B : Stinks. Came free with a bag. Never by this product. Seafoam or Seadrops are the only way to go if you buy the stuff. Baby shampoo does a better job and won't burn your eyes.MATTHEW O : The only defog worth using. It costs a lot because it works. Yup it's expensive so buy the big bottle if you're going to do more than 50 divesTRAVIS K : Waste of money, I keep the same little bottle with a few drops of "Dawn" dish soap and water. Then it doubles for making drysuit seals easier to pull on.

Reviews about this item

Review Summary

2021-12-09T17:49:27

Rated 5 out of 5

AMAZING DEFOG!!

Hands-down THE best defog I?ve used. As a former competitive swimmer, I?ve tried nearly every defog out there (saliva, dish soap, baby shampoo, cat crap, sea gold, quick spit, TYR?) and believe me when I say, I buy the LARGE bottle because all my dive buddies come to me after trying this once. And let?s face it, in the days of COVID, everyone on the boat spitting into their masks and rinsing in the same freshwater bucket just isn?t the way to go.

Michael B.

2021-07-26T01:18:38

Rated 5 out of 5

BEST Anti Fog

BEST Anti Fog

ALAN S.

2020-09-24T08:46:52

Rated 5 out of 5

Defog

Amazing Defog

MISTY S.

2020-06-08T10:01:37

Rated 5 out of 5

Best mask defogger I have ever used.

I love this stuff. Works better than any other mask defogger I have ever used over the past 30 plus years of diving. A little bit goes a long ways. Works in varying water temperatures and has lasted for two consecutive dives with a single use many times. My friends, when they see I have this with me, are always asking me to share because they like it too.

STEVEN M.

2019-10-12T05:25:12

Rated 5 out of 5

Anti fog

It worked wonderfully. I've tried other products to no avail. I strongly recommend this to any diver.

Donald M.

2019-05-08T20:00:00

Rated 5 out of 5

works well!

Your product, mask scrub, is the best for defogging masks on the market

WilliamT

2019-01-22T13:07:14

Rated 4 out of 5

Scrub Dezzz nuts

Well it worked very well on my mask had no problems at all. I even used it on my nut sack for itch relief. Worked very well for that also

Jason K.

2018-12-13T09:44:17

Rated 5 out of 5

BEST EVER

Excellent anti-fog. Normally use shampoo but this has worked EVERY time utterly flawlessly. Serious! Highly recommend.

JOHN O.

2018-11-28T13:05:35

Rated 2 out of 5

Not what I remembered..

I have purchased this product previously and really liked it. This time around the product failed miserable. I had fogging after repeated applications. Unhappy....

JOE G.

2018-11-12T10:25:09

Rated 5 out of 5

This works

Very good product. Keeps the mask fog free when diving and snorkeling. Can't detect any odor.

Kevin K.

2018-04-29T20:00:00

Rated 5 out of 5

Works when others dont

You dont need alot of this for each application, and one application can get you through a couple dives.

WilliamT

2017-08-03T11:41:48

Rated 5 out of 5

Great Stuff

500-PSI is the best Mask Defog. Have used it for several years and works great.

TED B.

2017-05-14T20:00:00

Rated 5 out of 5

Good product

Tried this defog solution while buying a mask on-line. It works. No fog!

SueS

2017-04-04T06:13:36

Rated 1 out of 5

Not so great

Very watery consistency. Mask fogged up immediately.

PATRICIA L.

2017-03-30T08:01:40

Rated 5 out of 5

great stuff

great stuff lk;asjdfl;kjas;lkdfj;laksjdfl;kjas;dlfkjas;lkdjf;laksjdf;lkjas;lfkja;slkjdf;laksjdf;lkjasd;flkjasd;lfjk

DAVID A.

2017-03-24T09:40:22

Rated 5 out of 5

Works wonderful

This blend of Def-fog has been around for a while. It works great and if there is left over residual it wont burn your eyes as bad as other brands. keeps the mask free of fog for a couple dives.

Robert C.

2016-08-06T03:07:41

Rated 5 out of 5

Very good

This is my favorite. I have used others and they are ok but I keep coming back to this brand. For me it works best.

KEVIN K.

2016-07-27T11:02:50

Rated 5 out of 5

Best Defog Ever

This is the best mask defog that I have ever used.

Jacob D.

2013-08-14T20:00:00

Rated 5 out of 5

Works great

Thick consistency, rub on, rinse off, CLEAR.

Sarge

2012-10-09T20:00:00

Rated 5 out of 5

Best defog on the market

I've been using this defog for over 8 years. I haven't seen any other defog that works as well..

Ghost D.

2012-06-13T20:00:00

Rated 5 out of 5

VERY GOOD PRODUCT!!!

PSI 500 defogger is an excellent product!!! Put it in your mask before a dive scrub it around a good rinse and you are on your way with a mask that will not fog up.

Dallsheep

2011-10-22T20:00:00

Rated 5 out of 5

I can see!!

500 PSI mask defogger is great. One application works for more then one dive. Really don't have to worry any more about my mask fogging up on that one dive you don't want to miss see!

Donald

2011-09-21T20:00:00

Rated 5 out of 5

Perfect. It doesn't get any better

i love this stuff & the fact that it doesn't burn my eyes like other defogs i've tried.

juliette1417

2011-08-18T20:00:00

Rated 5 out of 5

Awesome stuff

I love this stuff, especially since it comes in a large bottle.I do a lot of cold water wreck dives in deep water. I hate those tiny sea gold bottles. Great for students! Best deal hands down...

DARRYL W.

2011-04-04T20:00:00

Rated 5 out of 5

Love this product

Great company to deal with..

chuck

2011-04-04T20:00:00

Rated 3 out of 5

Effective, but there are better

Bought this and Sea Gold for a liveaboard trip, used Sea Gold regularly in the past but last year the liveaboard had a 500 PSI dispenser on the dive deck and got used to using it. Started the trip using the 500 PSI, which worked OK, then just to compare switched to the Sea Gold for the last 2 days, which I found to work a lot better.

BigJim

2011-01-12T19:00:00

Rated 5 out of 5

Good stuff

Works as advertised. I slather my mask before the dive, and rinse immediately before getting into the water. Haven't had a fogging problem yet!

CHRIS D.

2010-09-07T20:00:00

Rated 5 out of 5

Works great

Works great. A lot better than good ol' spit.

Scuba F.

2009-09-16T20:00:00

Rated 5 out of 5

Good Product!

A most practical and useful product.

Geezerlite

2009-04-05T20:00:00

Rated 5 out of 5

Works Great!

Delivered quickly

DWIGHT D.

500-PSI Mask Defog Specifications

  • Purpose

    De-Fog Lenses

  • Size

    2 or 4 fl. oz. (59 or 118 ml)

  • Biodegradable

    Yes

  • Removes

    Condensation and Debris

  • Applicator

    Spray Bottle

  • UPC Code

    020443506006

About 500-PSI Mask Defog

FEATURED REVIEWS

Seeing is believing

By Gregor d.

The 500 PSI antifog works well and is good for multi dives before an additional application is needed. Much better than the "more liquid anti fogs out there.

Excellent defog

By diver h.

We used Sea Drops for years but have become dedicated users of 500-PSI. I have always had issues with other defoggers esspecially when used during cold water (50 - 60 degrees) dives. It seemed that no matter what we used my mask always fogged somewhere, somehow. I now use only 500-PSI and never have any problems with fogging. From warm water to really cold we think this is the best defogger yet.

500 PSI Mask Defog is without question the clearest, longest acting and most effective defog on the market. One application works for at least three dives in one day. Cleans your mask each time you use it. Wet or dry application, has the consistency of extra thick toothpaste, and when applied to the lens typically lasts all day long. 500-PSI Mask Defog comes in 2 or 4 fl. oz. (59 or 118 ml) size with a 2 fl. oz. (59 ml) available with a carabineer clip.

500-PSI Mask Defog Features

  • 500-PSI Mask Defog
  • De-Fogs Sports Lenses
  • Great for Snorkel or Dive Masks
  • Clearest Longest Acting Defogger
  • One Application/Three Dives
  • Cleans Lens Each Time
  • Wet or Dry Application
  • Applicator: Spray Bottle
  • Content: 2 or 4 fl. oz. (59 or 118 ml)
  • 2 fl. oz. (59 ml) Available with Carabiner Clip

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Key Features

  • Enjoy crystal-clear dives with our 500-PSI Mask Defog, eliminating frustrating lens condensation.
  • Our biodegradable mask defog spray is safe for the environment and your valuable dive gear!
  • Quickly removes grime & residue; this mask defog ensures your dive mask offers optimal clarity.
  • Choose the perfect size! Available in both 2 oz and 4 oz bottles of our reliable mask defog.
  • Easy spray application makes our 500-PSI Mask Defog a breeze to use before any scuba dive.
  • Get the best view! This defog enhances lens quality for safer, more enjoyable underwater adventures.

What's in the box:

  • 500-PSI Mask Defog