The revolutionary NT3D NanoTek filter with a 97%+ efficiency rating (NaCl test by KATRI).
Reviews
4.1
45 ratings
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Fantastic mask for the gym!
This is easily the most comfortable gym mask I've found. The X-frame design is genius. And the washable filter is magnificent. I love it!
M
Michael · January 14, 2023
Excellent all around
These filters, the mask, the structure frame inside, the neck strap, the comfort of the ear loops, the double copper layering....all of it is top notch. Absolutely my favorite masks.
A
Amy · March 2, 2022
My fave masks and filters!!!!
I love these masks and filters!! I feel confident and I love the X-frame - thanks! Worth the investment.
