What are the headgear sizes for the ResMed AirFit™ F40 full face mask?Updated 15 days ago
The ResMed AirFit™ F40 full face mask comes in three different frame sizes—Small, Medium, and Large—to provide a better fit across a wide range of facial shapes.
Each frame size is paired with a corresponding headgear size designed to align comfortably with your face and provide a secure seal.
🧷 Frame & Headgear Size Guide:
| Frame Size | Headgear Size | Recommended Face Width |
|---|---|---|
| Small | Small | Narrow facial features |
| Medium | Standard (Medium) | Average-sized face (most users) |
| Large | Large | Broad or wide facial structure |
The headgear attaches to the frame via magnetic clips and is adjustable for a more customized fit.
The mask cushions are interchangeable between frame sizes, but for the best seal and comfort, the frame size should match your facial width.