How do I choose the correct size for the Urban Air Mask ?

Modified on Thu, 7 Mar at 4:18 PM

To find the correct size for the Urban Air Mask, we recommend combining the two measurements below: the Weight Measurement and the Eye-Chin Distance Measurement.


The weight measurement is strongly correlated with the length and size of the face, making it a great measurement for mask sizing. 


1. Use a weight scale to find your weight

2. Compare your weight to the table below to find your size

Recommended Size

Weight (KG)

Weight (LB)


10-25 kg

22-55 lb


25-55 kg

55-120 lb


55-80 kg

120-175 lb


Over 80 kg

Over 175 lb


The eye-chin distance measurement is a very accurate method for getting the correct mask size. 


1. Use a ruler and measure the vertical distance between your lower eyelid and your chin

2. It can be helpful to do this in front of a mirror or with the help of a friend. It's also helpful to use a book.

3. Compare your measurement to the table below to find your recommended size.

Recommended Size

Eye-Chin Distance (cm)

Eye-Chin Distance (inches)


Less than 8.5 cm

Less than 3.3 IN


8.6-10.5 cm

3.4-4.1 IN


10.6-12.0 cm

4.2-4.7 IN


Over 12.1 cm

Over 4.8 IN

If you get different recommendations from the 2 methods, follow the one from the Eye-Chin Distance measurement. 

If your weight or eye-chin distance is on the borderline, pick the bigger one to ensure a better fit.

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