There are many types of CPAP machines, and the good news is that most of them are “plug and go.” Do not use an extension cord if you can avoid it, but if it is necessary choose a heavy-duty option. CPAP machines should not be plugged into outlets with other devices. Place the machine on a sturdy, flat surface no higher than your head (while sleeping) to avoid tubing condensation. Ensure the air filter is not obstructed and a minimum of six inches from any object including walls or furniture.