Compare to Respironics basic. One size fits most. This Chinstrap is designed to attach to the top of the headgear of CPAP Masks. Not Compatible with Nasal Pillow Masks.
*Chinstraps will not treat snoring or Obstructive Sleep Apnea without a CPAP mask and machine*
When attached to my CPAP mask as instructed, this chin strap makes it a real hassle to put the mask on or take it off. It is only marginally effective once I get it on and needs to be shifted fairly often to stay in place.