How To Choose The Right Size ResMed AirFit F20 Mask?

The ResMed AirFit F20 comes in three different sizes (small, medium, and large). To make sure the full face CPAP mask fits well, we recommend measuring from the bridge of your nose to your chin indent. With the measurement and mask sizing guide mentioned below, the user can determine their ideal mask size. 

Small: 2.91 to 3.39 inches 

Medium: 3.39 to 3.9 inches

Large: 3.9 to 4.7 inches