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All CleanSpace respirators are compatible with a range of facepieces including half and full face masks. The half mask comes in three (3) sizes: small, medium and large. When the wearer does not have the masks to select the different sizes, we recommend using the Mask Size Guide available below to assist users with selecting the right size mask.
When selecting a suitable mask size we provide the following guidance:
When fitting the CleanSpace respirator, mask size is only one way to achieve a good fit, harness and power unit adjustments are also recommended to ensure the system is comfortable and there is minimum leak.
Face Length (Vertical Axis)
Face Width (Horizontal Axis)
|Fit Number||First Try||Then Try|
|3-7||Medium||Small OR Large|
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.