How to buy a dive mask

When buying any equipment for scuba, your two most important selection factors are fit and comfort. This is particularly true for your mask, because a mask that does not fit well will leak and/or irritate you and take the fun out of the dive.

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Choosing the right mask for you

When buying any equipment for scuba diving, your two most important selection factors are fit and comfort. This is particularly true for your diving mask, because a mask that does not fit well will leak and/or irritate you and take the fun out of the dive.

To test a mask for proper fit, use the "sniff" test. Place it gently against your face without using the strap and inhale through your nose. A properly fitting mask will pull into place by suction and stay as you inhale. If you have to push or twist the mask to make it seal, try a different one. After finding some that fit, try pinching your nose with each on to see which is easiest.

Visual correction mask

If you need visual correction, some masks accept prescription lenses. You´ll want to think about this when buying a mask, because not all masks do this readily. In many cases your dive equipment retailer should be able to offer the best advice regarding this matter.

Before using your mask for the first time

Manufacturers coat new masks with a protective chemical that you need to scrub off or you won`t be able to defog the mask. To remove the film, use a soft cloth to gently scour the glass inside with a non-gel toothpaste or other low abrasion cleaner with fine grit that can remove the film without scratching the glass. Be sure to do this before using the mask for the first time.

Next, adjust the mask strap for a comfortable fit across the crown of your head. The strap should be snug, but not tight, and make sure to close the locking device (they differ a bit from one mask to another) so it does not slip.

Source: PADI Open Water Diver Manual pp 30-31