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This page gives detailed information about Continuous Positive Airway Pressure, also called C.P.A.P.. CPAP is the main treatment for obstructive sleep apnea.
The CPAP machine delivers a constant flow of air through tubing and a mask, into your airway. The CPAP machine creates enough pressure in your airway to hold the tissue open, so your airway doesn’t collapse.
The soft, steady jet of air from the CPAP machine creates enough pressure to keep the airway open.
Your sleep specialist will prescribe a particular CPAP pressure for you, based on how much pressure you need to keep your airway open. Your sleep specialist may have you try different levels of CPAP pressure when you’re in the sleep laboratory, to see which is the right level for you.
CPAP is a treatment, not a cure. While you’re using CPAP, your sleep apnea symptoms stop. Your breathing and your sleep are healthy. If you stop using CPAP, your sleep apnea symptoms will come back. Your breathing and sleep will be interrupted again.
If your doctor says you need to use CPAP, you must use it every time you sleep.
There are now many models of CPAP machines, masks and accessories available. Your doctor and medical supplier can help you find the ones that fit you best.
Most people buy CPAP equipment through a home oxygen company. Look in the phone book under “Oxygen” for a list of suppliers.
For CPAP therapy, you need:
Many people also use a humidifier, or a heated humidifier.
You may also want to buy a battery pack so you can use your CPAP machine in places where you can’t plug it in (camping, etc.) or during a power outage.
To buy a CPAP unit, you need a doctor’s prescription. Your doctor’s prescription will say what pressure your CPAP machine needs to be set at. For insurance purposes, the prescription should also mention your CPAP mask and humidifier.
The key to using CPAP therapy successfully is a good mask fit. Your mask needs to be comfortable. When you’re choosing a mask, pick one that feels comfortable as soon as you put it on. Remember: it takes time to get used to wearing any mask for an extended period of time.
There are several kinds of CPAP mask on the market:
To figure out which type of mask is right for you, ask yourself these questions:
CPAP is the best treatment for obstructive sleep apnea. It can make your symptoms totally disappear, as long as you keep using it. But many people find it hard to use CPAP at first. They may find the mask uncomfortable, or they may be bothered by a dry nose. It is possible to be comfortable wearing CPAP, but it often takes some adjustments until you get the right mask and the right fit.
We understand that wearing CPAP can be difficult, especially if you still feel tired. It’s really important to stick with CPAP and make adjustments until it feels comfortable. Your doctor and equipment supplier can help solve any problems you may have. It may be a bit of trial and error at first, but it’s worth it.
Once you start getting restful sleep, you’ll feel so much better. You will realize that all the discomfort you went through to get used to CPAP was worth it.
If you have a dry nose, try using a humidifier that attaches to the CPAP machine. It helps by adding moisture to the air. If that doesn’t help, try a heated humidifier. It adds even more moisture to the air. Do not put a regular humidifier in your room because it could damage the CPAP machine’s motor.
It’s common for people to have a stuffy nose when they start CPAP. Adding a humidifier or heated humidifier to your CPAP machine can help.
If you’ve added a humidifier and your nose is still stuffy, see a doctor. Your nasal stuffiness could be cause by sinusitis (swelling in your sinuses), allergies or rhinitis (swelling in your nasal tissues).
You may also have partly blocked nostrils because of nasal polyps (growths) or old fractures (breaks) in your nose bones. If you have either of thee problems, get treatment from an ear, nose and throat specialist. A full face mask may be the best mask for you.
It’s important that your nose is as clear as possible to make wearing your CPAP mask more comfortable.
Any marks from your CPAP mask and headgear should disappear soon after you remove the mask. If they don’t disappear, or if you have sore or red skin, your headgear could be too tight or you mask might not fit right.
Adjust your headgear until it is just tight enough to make a seal without any large leaks. A small air leak that does not blow into your eyes is fine. If that doesn’t help, try a different style of mask. Ask your doctor or supplier to help you chose one that’s right for you.
If those tips don’t help, try a different style of mask.
The pressure of the CPAP makes most people sleep with their mouths closed. But some people still sleep with their mouths open. This is a problem: it means you’ll wake up with a dry mouth and you may no be getting the most from your treatment.
To keep your mouth closed while you sleep, try wearing a chin strap (available from your medical supplier). If that doesn’t work, ask your doctor about using a full face mask.
Try using a heated humidifier that attaches to the CPAP machine. It adds moisture to the air and cuts down on dryness.
Ask your pharmacist for artificial saliva or oral lubricant products that can help with a dry mouth.
Most people find they will occasionally knock off their CPAP mask during sleep. This is normal. But you do need to keep your CPAP treatment going all night long.
Many people use a humidifier or a heated humidifier to help make CPAP more comfortable.
Humidifiers add moisture to the air before it goes into your CPAP mask. This makes it more comfortable for you to breathe.
A heated humidifier delivers more moisture than an unheated humidifier.
Without a humidifier, you may have a dry throat, a dry or stuffy nose, or a bleeding nose. Using a humidifier with your CPAP will help prevent these problems.
It’s important to keep your CPAP equipment clean and in good shape. To find out how to care for your particular model of CPAP equipment, read the instructions in the owner’s manual. These are some general instructions
Empty the humidifier before moving your CPAP machine.
Frequently asked questions (FAQs) about CPAP treatment
Some people are able to use their equipment with no problems from the very first night. They wake up feeling much more rested. Others can have trouble getting used to the mask and the pressure. It may take up to 6 weeks to adjust. It is important to keep trying – do not give up.
If you stop using CPAP, your sleep apnea symptoms come back. CPAP treatment only works when you use it.
If you gain or lose 30 pounds or more, see your doctor. He or she may have to adjust your CPAP pressure. To find the right pressure for you at your new weight, the doctor may order another sleep test or may ask you to use an auto-titrating (self-adjusting) CPAP machine for a few days.
There are some people who are still sleepy even though they use their CPAP properly. The first step is to make sure that your equipment is working. You can take the CPAP machine back to the supplier to have it checked. Second step is to speak to your sleep doctor about other possible sleep problems. Your doctor may send you for more tests. Usually the problem can be solved.
Some people who are still sleepy might be prescribed a stimulant medication called Modafanil (a stimulant is a medicine that makes you more alert and awake). Modafanil is not a replacement for your treatment. It is used along with CPAP to help you with daytime sleepiness. Always talk to your sleep doctor about any problems that you have.
If you are having trouble with your CPAP equipment, talk to your sleep specialist. He/she can suggest some tips or test for other problems.
Treating sleep apnea is very important for your overall health. If you’re having problems getting used to your CPAP equipment, please do not give up. It may take a few weeks, or even months to be comfortable wearing a mask. Be patient. Return to your supplier to look for ways to make CPAP more comfortable. Talk to your sleep doctor about any medical concerns. Don’t give up.
Many insurance policies will cover CPAP equipment that has been prescribed by a sleep doctor. Your insurance company will ask for a copy of your prescription when you make the claim.
The Lung Association believes that everyone who needs CPAP treatment for sleep apnea should have it paid for.