CPAP Face Mask Air Hose Elbow

thingiverse

My cpap mask-to-hose swivel elbow got lost, so I made this one. Works with ResMed Quattro Full Face mask, may work with others. 22mm hose diameter, 23.5mm mask input diameter. There are two parts--the collar and the elbow. The collar slides onto the elbow and snaps into place. Print with holes flat on bed using supports at 60deg overhang. Print both the collar and the elbow at 100% full scale first to test fit. You may have to vary the scale to get the elbow to swivel freely in the mask or the collar to swivel freely on the elbow. You should have to press very hard to get the collar onto the elbow, but it should spin freely once on. Make sure the collar fits into the hose and the elbow into the mask they way you like it before pressing the collar onto the elbow, because once you snap the collar onto the elbow you will not be able to get them apart.