Sizing Guide

To ensure the best fit for your OxyArmour face masks you can follow this sizing guide. This is only meant to be a guide, and if you prefer your masks to be tighter or looser it is up to your personal preference.

OxyArmour Face Mask Sizing Guard


Length  Tight Fit Loose Fit Extra-Loose
Across Face 27-30cm 30-32cm



If your measurements are between sizes we recommend the tighter fit - as a tighter mask will have better sealing.