Size Chart
Please determine your accurate size, using a ruler/measuring tape.
Note: The diagram is for representation purpose only | Nasofilters are suitable for ages 6+

If your thumb measures 1.9cm or less in width ,
You need size SMALL
If your thumb measures 1.9cm to 2.54 cm in width ,
You need size MEDIUM
If your thumb measures over 2.54 cm in width,
You need size LARGE