Size
It is important to select the correct sized mask, as it must fit snugly under your chin, and on your forehead. With your mouth closed, measure the distance between the bridge of your nose and the bottom of your chin.
- Less than 12 cm, choose size S/M
- More than 12 cm, choose size L/XL
- Kids: Less than 10 cm, choose size XS KIDS
If your face size measures exactly 12cms, it is possible you can fit L/XL or S/M but this depends on your face shape and nose bridge. We have found in our experience that the majority of users in this category will go with S/M. It is important to get an adequate face seal and even in if the forehead seal sits just above your eyebrows this is fine.
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