How do I know which mask is right for me?

It can take some time to work out which mask is best for you.

Making that decision can depend on how you breathe... For instance, do you breathe through your mouth rather than your nose, or do you tend to get a blocked nose?

If you know you have no problem breathing through your nose when wearing a mask, you should be able to use a nasal pillows mask or nasal mask. If you breathe through your mouth (sometimes referred to as 'mouth breathing'), you can try a full face mask or a nasal mask with a chin strap to stop your mouth from opening during sleep.