Should I Use a Chinstrap With My CPAP Mask to Resolve Mouth Breathing?

Dry Mouth May Improve with a Properly Fitted Chinstrap

A simple chinstrap may be used with a nasal mask to keep your mouth closed when using CPAP
A simple chinstrap may be used with a nasal mask to keep your mouth closed when using CPAP. Brandon Peters, M.D.

If you are having problems with your mouth coming open when you try to use your continuous positive airway pressure (CPAP), you may wonder, "Should I use a chinstrap with my CPAP?" Learn how chinstraps help improve mouth breathing, dry mouth, and leak from nasal CPAP masks. Consider alternatives as well, including treating nasal congestion and the use of a full-face mask.

Mouth Breathing with CPAP Can Improve by Using a Chinstrap

If you use a CPAP machine to treat your sleep apnea, you may have problems with mouth breathing that may need to be corrected with the use of a chinstrap.

A chinstrap is usually a piece of fabric, often fitted with velcro, that can be secured around your lower jaw and the top of your head. It may have a cup at the chin, much like a rugby headgear. Chinstraps are usually fairly inexpensive, often costing around $20. It keeps your mouth closed and allows you to get the full benefit of your CPAP.

You will likely know if you need a chinstrap based on the feedback of others. If mouth breathing is noticed during your sleep study, it may be applied at that time. Or, if your significant other notices air escaping from your mouth at night, or even snoring, this may suggest a need for a chinstrap. Also, if you wake up with a very dry mouth or painful throat, it may be due to mouth breathing on your CPAP machine.

Some people will use a chinstrap to help keep their CPAP mask on at night if they are removing it while they are partially asleep. This added layer may make it hard to take the mask off while remaining asleep.

When Should You Avoid the Use of a Chinstrap and What Alternatives Exist?

There are some cases in which you may not want to use a chinstrap. If you have a congested nose, a deviated septum, or if your CPAP pressure is not set properly, you may not be getting enough air delivered through a nasal mask.

In this case, closing your mouth firmly with a chinstrap may be the wrong approach. Instead, you may benefit from ways to open up the nose including treating allergies or surgery.

Another option beyond using a chinstrap would be the use of a full-face mask that allows breathing to occur through both the nose and mouth. These masks may cause more leak and marks on the face, and you will want to ensure that it is fitted properly to get the optimal benefit.

If you are struggling with mouth breathing on CPAP, get help to resolve this issue. It is important to speak with your durable medical equipment provider or your doctor before trying a chinstrap on your own. In addition, chinstraps or "snore guards" should not be used alone. If you are opening your mouth because you are having difficulty breathing through your nose, the last thing you want to do is hold your mouth closed.

Fortunately, most people are able to resolve mouth breathing with or without the use of a chinstrap. 

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