A CPAP machine provides a constant stream of pressurized air to your nose and/or mouth, which keeps your airway from collapsing while you sleep. This helps you breathe and maintain good blood oxygen levels throughout the night.

Let’s take a closer look at how CPAP machines work, what they look like, the differences between the three types of machines, the benefits and drawbacks, and how to succeed with CPAP therapy.

Continuous positive airway pressure (CPAP) therapy is a common treatment for obstructive sleep apnea. A CPAP machine uses a hose connected to a mask or nosepiece to deliver constant and steady air pressure to help you breathe while you sleep.

Common problems with CPAP include a leaky mask, trouble falling asleep, a stuffy nose and a dry mouth.

But if a CPAP mask or machine doesn’t work for you, you have other options. And most CPAP masks can be adjusted to help make them more comfortable.

Here are 10 common CPAP problems and what you can do about them: