FAQs & Troubleshooting

Understanding CPAP prescriptions and compliance requirements for successful therapy

FAQ Guide 6 min read EN | ES Available

Getting Started

Do I need a prescription for a CPAP machine?
Yes, CPAP machines are FDA-regulated medical devices that require a valid prescription from a licensed healthcare provider. However, home sleep tests like NightOwl do not require a prescription to purchase.
How do I know what pressure setting I need?
Your pressure setting is determined by a sleep study and prescribed by your doctor. It's typically written as a single pressure (e.g., 10 cmH2O) or a range for auto-adjusting machines (e.g., 6-14 cmH2O).
What's the difference between CPAP, APAP, and BiPAP?
CPAP delivers constant pressure, APAP automatically adjusts pressure based on your breathing, and BiPAP provides different pressures for inhaling and exhaling. Your doctor will determine which type is best for you.
How long does it take to adjust to CPAP therapy? Can I sleep on my side with a CPAP mask?
Most people adjust within 2-4 weeks of consistent use. Some notice improvements immediately, while others may take longer. The key is using your CPAP every night, even for naps.

Mask Fit & Comfort

My mask is leaving red marks. What should I do?
Red marks indicate the mask is too tight. Loosen the headgear straps gradually until you achieve a seal without excessive pressure. Consider mask liners or a different mask style if marks persist.
I'm experiencing air leaks. How can I fix this?
First, check that your mask is properly positioned and headgear is adjusted correctly. If leaks continue, you may need a different size mask or replacement cushions. Clean cushions daily as oils can affect the seal.
Which mask type is best for me?
Nasal pillows work well for side sleepers and those who feel claustrophobic. Nasal masks are good for most nose breathers. Full face masks are necessary if you breathe through your mouth or have nasal congestion.
Can I sleep on my side with a CPAP mask?
Yes! Many masks are designed for side sleeping. Nasal pillows and some nasal masks work particularly well for side sleepers. You may need a CPAP-friendly pillow to prevent mask displacement. Cleaning ∓ Maintenance

Cleaning & Maintenance

How often should I clean my CPAP equipment?
Clean your mask and humidifier chamber daily with warm soapy water. Clean tubing and headgear weekly. Replace filters monthly and follow the replacement schedule for other components.
What type of water should I use in my humidifier?
Always use distilled water in your humidifier chamber. Tap water contains minerals that can build up in your equipment and potentially cause health issues.
How often should I replace my CPAP supplies?
Replace mask cushions every 2 weeks, filters monthly, tubing every 3 months, and mask frames every 6 months. Following this schedule ensures optimal therapy and hygiene.
Can I use CPAP cleaning machines?
While some automated cleaners are available, daily washing with warm soapy water and thorough rinsing is the most effective and recommended cleaning method by manufacturers.

Troubleshooting

I'm waking up with a dry mouth. What can I help?
Dry mouth usually indicates mouth breathing. Try using a chin strap, switching to a full face mask, or increasing your humidifier setting. Ensure your mask isn't leaking air.
My CPAP machine is making noise. Is this normal?
A low humming noise is normal, but loud or unusual sounds may indicate an air leak, loose tubing, or filter issues. Make sure everything is sealed properly and replace filters regularly. Modern CPAP machines should be very quiet (under 30 dB). Unusual noise may indicate a dirty filter, loose connection, or mechanical issue. Check and replace filters first, then contact your supplier if noise persists.
I feel claustrophobic with my mask. Any suggestions?
Start by wearing your mask while awake to get used to the sensation. Practice relaxation techniques, try a nasal pillow mask (lighter and less intrusive), or gradually increase usage time each night. Yes! CPAP machines don't count toward carry-on limits on airlines. Notify your airline 48 hours in advance for in-flight use, bring your prescription, and empty the humidifier chamber before security.
My pressure feels too high. Can I adjust it?
Yes, you should use your CPAP for any sleep period longer than 20-30 minutes. This maintains consistent therapy and helps with compliance requirements if you have insurance.

Travel & Lifestyle

Can I travel with my CPAP machine?
Yes, CPAP machines are travel-friendly and approved for air travel. Most airlines allow you to bring them as an additional carry-on. Always carry a copy of your prescription when flying.
What if there's a power outage?
Many CPAP machines are compatible with backup batteries or portable power stations. Consider purchasing one for emergencies or frequent travel.
Can I use my CPAP while camping?
Yes, with the right accessories such as CPAP batteries, solar chargers, or DC adapters, you can use your CPAP in off-grid situations like camping.
Do I need to use my CPAP for naps?
Yes, it's recommended to use your CPAP even during naps. Sleep apnea can still affect you during short rest periods, and consistent use improves overall treatment results.

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