Usage Information: Standard headgear is provided in all Wisp Mask packages and is the most commonly preferred size. 'RS' Reduced Size headgear is provided in all Wisp Youth Mask packages and is available as a custom sizing option for children and smaller adults. Large headgear is available as an optional item for patients with larger heads. Any headgear size can be used with any Wisp mask. Headgear clips are NOT included.

Sizing Information: If your hat size is 7.25 or smaller or your shirt collar size 17 inches or smaller you will most likely prefer the Standard or 'RS' Reduced Size Wisp Headgear. If your hat size is greater than 7.25 or your shirt collar size is greater than 17 inches then you will most likely prefer the Large Wisp Headgear.