Comfort
Saline nasal spray
Salt water spray that moistens and clears the nose, a simple aid for the congestion and dryness some people get on CPAP.
Why it helps
Nasal congestion, a dry nose and nosebleeds are common side effects of PAP therapy. A blocked nose makes nasal masks hard to use and pushes you toward mouth breathing. MedlinePlus suggests trying nasal salt water sprays for a stuffy nose and using a humidifier for dry nasal passages.
How to choose
Plain isotonic saline spray is the simplest option and is sold without a prescription. Saline gels and rinses are alternatives. Medicated decongestant sprays are a different product; ask a pharmacist or clinician before using those, since they are not meant for long term use.
Ongoing congestion, frequent nosebleeds or one-sided blockage are worth seeing a clinician about. Your humidifier setting may also need adjusting, which you can usually do from the comfort menu.
Frequently asked questions
Why is my nose stuffy on CPAP?
Dry, pressurized air can irritate the nose. Raising the humidifier level, adding heated tubing, and a saline spray at bedtime help many people. See a clinician if it persists.
Can I use saline spray every night?
Plain saline is generally used as often as needed, but follow the product label. Medicated decongestant sprays are different and should not be used long term without advice.
Sources
Last reviewed October 11, 2026. How we research · Report an error