| Air Purifier Mask with Fans and Disposable Filters– Koolmask |
| https://koolmask.com Hexa is the first product designed by Koolmask a Seattle-based tech start-up. Hexa has risen from an idea to a product with multiple pending international patents.  in**@koolmask.com /koolmasks /koolmasks/ |  |
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