A proper fit is critical to achieve a tight seal guaranteeing the effectiveness of your A-Mask. We make our masks in the following sizes:

  • Small (S): Height: 12cm | Length: 14cm
  • Medium (M): Height: 14cm | Length: 16cm
  • Large (L): Height: 16cm | Length: 18cm
  • Extra Large (XL): Height: 18cm | Length: 19cm

In general, children up to 7 years old use Small, and older kids use Medium. Average sized women use Medium, and average sized men use Large. Women and men with larger faces may need Large and X-Large, respectively.

You can determine the size you need either by FACE MEASUREMENT or by TEMPLATE.  Unless you have a large or small head, most people could wear either of two sizes closest to their fit, by adjusting the ear loops and nose piece.