CPAPology Jack CPAP Mask and Tube Lift holds your CPAP hose above your bed by using a unique suction system. JACK may also be used to hang CPAP tubing in shower to wash and dry. Jack may also be used with oxygen tubing to attach to wall to avoid a tripping hazard. Each Jack package includes two Jack suction cups and two elastic twist bands. Simply remove the protective film from the suction cup, press the suction cup firmly against a clean and smooth surface. Cover with the plastic cap and screw the knob until you feel a resistance. Test the suction cup to make sure it is stable by hanging a tube or mask from it.