Replacement headgear for the Respironics WISP Nasal Mask.
The Respironics WISP Nasal Mask and Headgear is sold with the Standard (1094082 size headgear. If you require a size larger than the original standard that comes with the mask, the Large (1094078) is the size for you.
1094082 - Standard
1094078 - Large
You should order the large headgear if:
Your dress shirt collar size is greater than 17 inches
Your hat size is greater than 7.25