TR 2002 CL3 and CL3+ masks, both in EPDM and Silicone, are available in one size or in two different sizes: Small/Medium (S/M) and Medium/Large (M/L).
If you decide to opt for the mask with two sizes available, for the choice of the most suitable size it is recommended to proceed according to the Nose/ Chin measure as per the example below:
The measure of the distance from the attachment of the nose to the tip of the chin can be made with a ruler or a rigid meter; do not follow the contour of the nose since it may provide incorrect measurements.
| Distance | Recommended seize |
| From 105 to 120 mm | S/M (Small/Medium) |
| From 120 to 130 mm | M/L (Medium/Large) |
SPASCIANI SPA suggest all users of masks should undergo a test of adaptability of the face seal on the specific wearer, e.g. Fit Quantitative Test test, which provides a numerical estimation of the hold factor. Contact Customer Service if you need more information about the Fit Test.
