Your therapy system is most likely made up of a mask, air tubing, therapy device. You may also have received a heated humidifier.
Take a look at your therapy system to see if you can identify all the parts.
Knowing what to do (and what not to do) when setting up your equipment can make a positive difference to your treatment.
Here are some tips from ResMed.
Firstly make sure you place your device on a flat, stable surface, where there's little chance it will get covered by books or clothing.
Place it close enough to you so that you can reach the controls while you're in bed.
Leave plenty of room around the device, and make sure it's not too close to a wall or heater.
Your care provider or equipment supplier should have shown you how to connect your device and mask. If you're having any problems, see your product User Guide, which has clear instructions on setting up.
You can also contact your equipment provider for advice.