Jack CPAP Mask and Tube Lift uses a unique suction system to hold your CPAP hose above your bed, providing you with the maximum comfort at night. You can attach CPAP Mask and Tube Lift to any clean and smooth surface, like a wall in your bedroom or in the shower. Just remove the protective film and press the suction cup firmly against a wall. Cover it with the plastic cap and screw the knob until you feel a resistance. Make sure the suction cup is stable before hanging a tube or mask on it.