Size Guides
Sefam CPAP Mask Size Guides
Choosing the right mask size matters — an ill-fitting mask leaks, causes facial marks, and is the number-one reason people give up on CPAP therapy. Each of our masks is sized differently, so use the guide that matches your mask below.
Working with a clinician? Note your size and share it with them.
Jump to your mask
- Yuwell YF-06 Full Face Mask — printable sizing card
- Yuwell YF-01 / YF-02 Full Face Masks — tape or ruler measurement
- Yuwell YN-02 / YN-03 Nasal Masks — tape or ruler measurement
Yuwell YF-06 Full Face Mask
The YF-06 uses a printable sizing card that you hold against the base of your nose. Available in Small, Medium, Large, and a Fitpack (S+M+L cushions included).
Before you print: set your print dialog to Scale: 100% or Actual Size — not "Fit to Page". The guide includes two calibration checks so you can confirm the print scale is correct before using it.
⬇ Download the YF-06 Sizing Card (PDF)
Yuwell YF-01 / YF-02 Full Face Masks
The YF-01 and YF-02 are sized by measuring vertically from the bridge of your nose to just below your bottom lip. Available in Small, Medium, Large, and Extra Large.
How to measure: use a tape measure or ruler held against your face. Note the reading in cm and match it to the closest size on the guide.
Yuwell YN-02 / YN-03 Nasal Masks
The YN-02 and YN-03 are sized by measuring the width across the base of your nose, from one nostril to the other. Available in Small, Medium, and Large.
How to measure: use a tape measure or a ruler held horizontally across the base of your nose. Note the reading in cm and match it to the closest size on the guide.
Between sizes or not sure?
If you're between two sizes, or unsure which mask type is right for you, get in touch with your clinician or contact us and we'll help you choose.
