Tests show -10 to -15 dB sound dampening for low frequencies. Sound dampening works the best at higher tones, with soundproofing levels of -20 to -30 dB for high frequencies, which are the ones that disturb the most. 

Customers have asked for it and the reasons are more than enough. Having the nose not covered allows to use glasses or VR devices. Also a question of comfort for even easier breathing.

While it gets warmer, the temperature is still comfortable. The exterio layer distributes the heat over the whole mask and the fresh air coming inside helps refreshing. It is recommended to put it off for a moment every 15 to 20 minutes, although the feeling of comfort is maintained up to one hour wearing it, depending on the room temperature.

The sealing works very well while being comfortable. Made of memory foam in the inside, is one of the most important characteristics of the mask. Masks with seals made of silicone, like medical breathing masks or snorkel masks, require high pressure to seal. That is not the case with our memory foam seal, which with a little bit of pressure is enough to seal the sound. Besides, the multiple sizes help to adapt to each face.

最適なサイズを知るには、鼻と口の間を通り、後頭部を水平に一周した長さを測って下さい。

• 長さが58cm未満の場合、サイズSが最適です。
• 58～74cmの方はMサイズ、それ以上の方はLサイズが最適です。

It doesn't matter where you live. The shipping is completely free internationally!

From Feb. 2024 we cover also customs and import fees from delivering at your country.

Due to hygienic reasons, products are not returnable, and all sales are final. Please check our Refund policy.

If you are a Japanese customer, we've partnered with Kibidango, our trusted Japanese collaborator, to simplify the ordering process for our Japanese customers. Kibidango enhances your experience and ensures quick delivery, Japanese support, and an overall excellent experience: https://kibidango.com/2480

However, if you are from a different country and it does not appear in the list, please contact us.