500-PSI Instructor Mask Defog 12 fl. oz. (355 ml)
See all 500-PSI items
Top Rated Gear

500-PSI Instructor Mask Defog 12 fl. oz. (355 ml)

SKU: AQU5MDI MFR: 500
(10)2 questions, 13 answers
$35.95

Key Features

  • Keep your scuba mask crystal clear with our 500-PSI defog solution, ensuring perfect underwater visibility.
  • Our biodegradable mask defogger is safe for the environment, so you can protect our reefs while diving.
  • This 12 fl. oz. defogger is designed to remove condensation and debris, enhancing lens clarity for dives.
  • Get a clear view every time! Use our scuba mask defog before each dive for optimal performance.
  • Easy to apply with a convenient disk top, this defogger is a must-have scuba gear accessory.
  • Extend the life of your dive mask! Our defogger also cleans, keeping your gear in top condition.
See More Product Details
Free Shipping

See Options

1
Add to ListGet Sale Alert

Need help? Ask our experts.

Overview
Compare
Specs
Q&A

Questions & Answers

Shopper : Is this actually a spray (like it says in the product description) or is it a gel like most 500 PSI defog is? I really want the gel because I think it lasts longer.JEFFREY L : Same great gel product in a larger size bottle.BARRY F : Yes this is a gel defog.RYAN D : This is the “instructor” size defog gel they give for demo/promotion purposes. It is the same as the other gels. Happy diving.Keith C : This is a gel.FRED B : It's a gel. When applied to a clean mask; one that has been toothpaste in the last few days, it will stay coated all day, 3-4 divesJames R : It is a jelMatthew G : The product I received was a gel.ERICA B : It is the blue gel.JOSH P : It's exactly the same as the smaller bottle which is a gel. Just larger quantity.
Shopper : Why Did You Choose This?DAN A : Been using it for years.STEVE H : i use a lot of thisFRANK D : Best mask cleaner hands down. Now I have a lifetime supplySUZANNE E : WORKS GREAT DON'T HAVE TO BY SMALL BOTTLE ALL THE TIME AND YOU DON`T NEED MUCH ON YOUR MASK

Reviews about this item

Review Summary

2022-09-16T08:30:58

Rated 2 out of 5

Not as good as SeaSports Defog...

Not nearly as good as my "old stuff", SeaSports Defog. Start stocking the SeaSports product. Waaay better, at half the cost. The dive shop that had it here in Hilo closed down... the old owner finally met his maker, bless his heart. Maybe buy his shop, and send me 10 bottles...

DENNIS S.

2021-05-19T10:01:33

Rated 5 out of 5

Seesea

I can see again!

PAMELA M.

2020-06-30T08:48:59

Rated 5 out of 5

Amazing Product

This defogger is absolutely amazing! You won’t be disappointed!

LEWIS P.

2018-09-12T09:41:54

Rated 5 out of 5

Excellent defogger, and enough to last forever for one person

While I didn't really need a container this large, (I couldn't find a smaller container of this product), I bought it anyways based on the excellent reviews. I've tried many different defoggers, from spit and baby shampoo, to several retail defoggers. They all seem decent and some good, but none seem to work 100% of the time (although I realize there are several variables involved in applying it). So far, this is the best one I've found, although even it's not 100% perfect. The dive master I recently dove with just loves baby shampoo, but used my bottle here when he ran out, and begrudgingly admitted this stuff was a tad better... although he was going to stay with baby shampoo as it was cheaper. I'm keeping an eye out for any new solution to the fogging issue, but in the meantime, this will be my defogger of choice. (That and I have enough to last me a lifetime of dives now!)

DALE S.

2016-08-02T22:09:24

Rated 5 out of 5

500 PSI MASK DEFOG

For 26 years I have been using toothpaste for defogger. I really am annoyed with the way my mask always fogs up. I purchased 500 PSI DEFOGGER based on the reviews it had. I have to say I wish that I have had this for each and every dive. This stuff really works great. No more fogging up. I bought the large 12oz bottle to save money due to I snorkel a lot. With LEISURE PRO they offered a money back guarantee that could not be beat. If I was unsatisfied they would refund my entire purchase price. So I tried it and love it. My wife wouldn't snorkel with me due to the fact that her mask would always fog up and annoy her. Now she is in the water right next to me every time. Thank You Leisure Pro for stocking this product with the money back guarantee and Thank You 500 PSI for making a great product.

JOHN I.

2015-07-26T20:00:00

Rated 5 out of 5

Best defogger i have ever used

Have found none better

JEFFREY L.

2014-03-20T20:00:00

Rated 5 out of 5

The best defog ever...

The absolute best defog I have found, works better than any others I have tried...

Rick

2013-10-27T20:00:00

Rated 5 out of 5

works no problem

works have no problems, now. a fine product , i got the big container so others could use ,everyone seems to run out of defog.

DeepDiver

2012-09-04T20:00:00

Rated 5 out of 5

I've been trying to get this for years

I've tried many different mask defogs. This is by far the best. Works with wet masks as well.

yankeenica

2012-07-02T20:00:00

Rated 5 out of 5

Best DeFog

This defog cleans the mask every time you use it. It is never harsh on your eyes.

dive_buddy

500-PSI Instructor Mask Defog 12 fl. oz. (355 ml) Specifications

  • Purpose

    De-Fog Lenses

  • Size

    12 fl. oz. (355 ml)

  • Biodegradable

    Yes

  • Removes

    Condensation and Debris

  • Applicator

    Disk Top

About 500-PSI Instructor Mask Defog 12 fl. oz. (355 ml)

FEATURED REVIEWS

Seesea

By PAMELA M.

I can see again!

Amazing Product

By LEWIS P.

This defogger is absolutely amazing! You won’t be disappointed!

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. Large 12 fl. oz. (355 ml) makes it great for instructors or dive masters when students forget to bring their own.

500-PSI Instructor Mask Defog 12 fl. oz. (355 ml) Features

  • 500-PSI Instructor Mask Defog
  • De-Fogs Sports Lenses
  • Great for Snorkel or Dive Masks
  • Also Useful for Glasses and Goggles
  • Clearest Longest Acting Defogger
  • One Application/Three Dives
  • Cleans Lens Each Time
  • Wet or Dry Application
  • Content: 12 fl. oz. (355 ml)
  • Great Size for Instructor/Dive Masters

Warranty Information

This product has a limited warranty of 0 months.

- -

Best Price Guaranteed + 5% OFF

Submit a price match

30/90 FREE Returns

Worry-free returns

Sell your Used Gear

Get started in 3 easy steps

Key Features

  • Keep your scuba mask crystal clear with our 500-PSI defog solution, ensuring perfect underwater visibility.
  • Our biodegradable mask defogger is safe for the environment, so you can protect our reefs while diving.
  • This 12 fl. oz. defogger is designed to remove condensation and debris, enhancing lens clarity for dives.
  • Get a clear view every time! Use our scuba mask defog before each dive for optimal performance.
  • Easy to apply with a convenient disk top, this defogger is a must-have scuba gear accessory.
  • Extend the life of your dive mask! Our defogger also cleans, keeping your gear in top condition.

What's in the box:

  • 500-PSI Instructor Mask Defog 12 fl. oz. (355 ml)