How To Choose the Right Size for Your full-face CPAP mask?

Choose from three different Quattro FX mask sizes. Don’t know what size mask you need? With your mouth open, measure from the bridge of your nose to halfway between your bottom lip and chin. The measurement should match one of these options:

• 61700 Small Size = 3.5 inches
• 61701 Medium Size = 4 inches
• 61702 Large Size = 4 3/8 inches