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  • The CleanSpace size guide cutout is designed to provide an easily accessible guide to help find the right mask for you.
  • By aligning this guide with the base of your chin you will be able to see which size we suggest for you.
  • For a precise fit download the mask size guide cutout and combine the information with the sizing table below.

Sizing Table

Face Length
Face Length (Vertical Axis)
Face Length
Face Width (Horizontal Axis)
Face Length
Face Length
138.5mm     Face Length
Face Width
128.5mm 6 9   10
118.5mm 7   8
108.5mm 3   4 5
98.5mm 1   2
  120.5mm  132.5mm 144.5mm 158.5mm
Fit Number First Try Then Try
1-2 Small Medium
3-7 Medium Small OR Large
8-10 Large Medium

On narrow faces, the action of pulling on the arms of the mask to tighten it causes the height of the mask to increase. The narrower the face, the more likely a smaller mask will be a better fit.

Face should be relaxed when taking measurements.

No set of guidelines can ensure that you have the right size mask for your face. You must confirm the fit performed according to OSHA regulations 1910.134.

Speak to our Customer Service Team