The Lite Air Mask is a reusable air mask that protects against air pollution, smog, pollen, allergens, and bacteria*. Made with a lightweight airy 3D air mesh material and elastic earloops, the Lite Air Mask provides great balance between solid protection and lightweight comfort and a timeless design for everyday use.
*The mask filters out PM 2.5 pollution and particles down to the size of 0.3μm. Each filter may be used for up to 100 hours or approximately 2 weeks, depending on usage.
Eye Chin Distance Measurement
The eye - chin distance measurement is a very accurate method for estimating the correct mask size.
Use a ruler and measure the vertical distance between your lower eyelid and you chin
Note that this is easiest to do in front of a mirror or with the help of a friend.
Compare the measurement to the table in the picture below