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About IST Pro Ear Two Window Mask

For many divers, from beginners to the most experienced professionals, ear problems affect their ability to enjoy their sport more than any other health issue. More dives are aborted and more diving holidays shortened due to ear problems than any other cause.

Water and pressure affect every diver's ears. Infection and discomfort to the ear are the most common health risks involved in diving, often causing permanent damage. Many divers find they must interrupt expensive, long awaited diving holidays as a result of ear problems. The financial loss and unfulfilled expectations are enormous.

PROEAR is the world's only practical ear protector for divers, designed and developed by diving physicians, engineers and instructors at SAFE DIVE. LTD in order to enhance diver safety and comfort. The PROEAR unique design and performance, allows divers to keep their ears dry, thereby: Improving diver comfort and preventing painful ear problems, improving hearing and sense of direction underwater and simplifying equalization of pressures while diving.

The Mask Skirt is made from the best Grade of Crystal Clear, Hypoallergenic Silicone; the Double Feathered Edge Skirt is Soft and Automatically Conforms to a Wide Range of Facial Profiles. The Wide Split Style Strap is mounted on Swivel Buckles; the Silicone Strap with its Large Contact Surface Secures the Mask to the Wearer. The Silicone Rubber Double Feathered Edge Skirt and Wide Split Style Mask Strap combine to create a Perfect Seal on the Face. The Soft Silicone Ear Covers forms a Water Tight Seal between the Ear Drum and the Cover. The pressure buffer created has the same pressure as your nasal cavity mask when air exhaled through the nose is introduced through the Equalization Tubes. Therefore the pressure experienced in your middle ear and outer ear is the same and the Squeeze" from the ambient environment will be significantly reduced. Other benefits by keeping the ears sealed include reduced chance of an ear infection from water, improved sense of direction and warmth retention.

Dual Tempered Glass Window Design with Large Nose Pocket for Ease of Equalization and Low Profile, Low Volume Design, allows a Wide Field of Vision. Equalization Tubes: With One-Way Valve placed inside each tube, air is allowed to travel from the mask to the ear covers for pressure equalization and water clearance while stopping water from flooding the mask in the unlikely event of flooded Ear Covers. Mask is available with a Clear Silicone Skirt with a Black of Blue Frame. Mask comes with a User Manual and is covered by a 36 month limited warranty.

The IST Pro Ear Two Window Mask is commonly used for Open Water Diving, Recreation, Snorkeling and more. The IST Pro Ear Two Window Mask is most used by customers who consider themselves to be a Advanced, Casual/ Recreational among others. The IST Pro Ear Two Window Mask is popular because customers like the following qualities of the IST Pro Ear Two Window Mask: Does Not Fog, Lens Quality, Range of Vision, Snug Fit.

Warranty Information

This product has a limited warranty of 36 months.

IST Pro Ear Two Window Mask Features

  • Prevents Pressure Induced Ear Ache
  • Pressure Equalization is Easily Achieved
  • Enhanced U/W Hearing and Sense of Direction
  • Stops Dirty/Polluted Water Ear Infection
  • Increased Warmth around Ears in Cold Water
  • Crystal Clear, Hypoallergenic Silicone Skirt
  • Double Feathered Edge Skirt
  • Wide Split Style Strap
  • Feathered Edge Skirt and Wide Strap for Superior Seal on Face
  • Conforms to Wide Range of Faces
  • Dual Tempered Glass Window Design
  • Large Easy-to-Reach Nose Pocket for Ear Equalization
  • Low Profile, Low Volume Design
  • Wide Field of Vision
  • Swivel Buckle Assemblies
  • 2 Color Choices (Clear Skirt): Blue or Black Frame
  • User Manual
  • 3 Year Limited Warranty

IST Pro Ear Two Window Mask Customer Reviews Powered by TurnTo®

Review Summary


(based on 23 reviews)


of respondents would recommend this to a friend.

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars



Most Liked Positive Review



I dive roughly 3 or 4 days a week for my job. After a few years of doing this I would get repeated ear infections and have trouble clearing. I have used this mask for just shy of two years now and have never had trouble clearing or any ear infections since. I have tried a multitude of other products in the industry and this one works. The first few times it will feel odd and might leak but I found that was more do to user error than product defect. The more you wear it the more you will ...

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Most Liked Negative Review


Poor fit

Too big and difficult to adjust the straps. Leaks.

Reviewed by 23 customers

Displaying reviews 1-5

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happy swimmer


from north port, FL, US

I bought this mask with ear covers for my husband, who has perforated ear drums and has not been able to go under water for 45 years. He was like an excited 5 year old going under the water swimming for the first time. Cant wait for him to go snorkeling with me , and experience under water ocean life!!!


Manufacturing Defect on Proear masks


from Raleigh, NC, US

I was quite pleased with the original Proear mask which was manufactured by Oceanic Products. I paid $140 for the new mask after it was first introduced. It worked for decades. The new replacement model failed after 2 uses, The second replacement failed before I had a chance to use it. The weak spot is inside the mask where the tubing connects. The retaining grommet shears. It seems that the change of manufacture has affected the product.


No more ear infections


from San Jose, CR , CR

I was very prone to ear infections until I started using the Ist Pro Ear!


Great mask


from Clarksburg, WV, US

After a perforated ear drum I could not dive due to water entering my ear, this mask keeps the water out and makes equalization a breeze !


Great product


I've used this mask for over 5 yrs and 60+ dives without any problems. Make equalization easy.

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Questions & Answers Powered by TurnTo®

Questions about this item:

Shopper  Why Did You Choose This?
DAN S  Had a ruptured ear drum and needed to dive.
Kim B  My husband has only one ear drum and until he found this mask he couldn't snorkel without the pressure becoming too much for his working ear. This mask has been amazing for him. The first one we bought has lasted more than 10 years and it is finally time to get a new one.
Doratia J. W  works good.
LYN H  Like others have written, I have had ear problems on decent while scuba diving. I have not used them in the ocean yet but practice with them in my pool is working out well so far.
ED K  Ear infections without it.
WILLIAM M  Constant problems clearing and ear infections. Solved both problems.
WILLIAM D  I have suffered two baurotramas and have considerable trouble clearing. I can only clear by other method. This mask has been a godsend. I HIGHLY recommend it to anyone who has problems equaling. A simple puff thru the nose and your are cleared!!
GARY M  Good idea but cumbersom to use.
Garrett L  What is the total volume of the mask and does anyone use it for freediving?
Frank L  This is not really a mask used for freediving. Its a mid volume mask. Check out freediving masks here:
Shopper  Can you put a slap strap on this mask?
JANICE P  I think I have always just used the clear one that comes with the mask. Just a note, I have a very small face, and the second one I bought was a small, but I wish I would have bought extra small. My first mask lasted for years, and I loved it.
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