Learning how to use a CPAP machine takes a little patience, but the payoff is real: better sleep, fewer apnea symptoms, and more energy during the day. New to therapy or years into it, the same handful of habits separates a frustrating experience from a comfortable one.
This guide walks through the five things that matter most: getting your mask fit right, setting up your machine properly, building a consistent bedtime routine, using the comfort features built into your CPAP machine, and knowing when to call your sleep specialist. The advice applies whether you use a CPAP, APAP, or BiPAP machine, since the day-to-day habits are the same across all three.
1. Get Your CPAP Mask Fit Right
After your prescription and pressure settings, mask fit is the single biggest factor in whether CPAP therapy works for you. The Canadian Lung Association calls a good mask fit the key to using CPAP successfully, and most fit problems are solvable with the right mask style, the right size, and a few minutes of careful adjustment. If the part names (frame, cushion, headgear, elbow) are new to you, our guide to the parts of a CPAP machine shows each one on a diagram.
The three CPAP mask types
CPAP masks fall into three categories, each suited to different breathing patterns, sleep positions, and comfort preferences. Our mask types comparison goes deeper on each.
- Full face masks enclose both your nose and mouth. They are the right choice for mouth breathers, people with chronic nasal congestion, and patients on higher pressure settings.
- Nasal masks cover only the nose. They balance seal stability with a lower profile, and they work well for most people who breathe through their nose at night.
- Pillow masks rest just below the nostrils on soft, flexible cushions. They are the least obtrusive option, ideal for side sleepers, people with facial hair, and anyone who feels claustrophobic in a larger mask.
Within each category, masks come in multiple sizes and frame styles. Face shape, sleep position, and the severity of your sleep apnea all factor into which model will work best. If you are unsure, our team can help you narrow it down before you buy.
How to put on a CPAP mask properly
Most fit issues come from rushing this. Take your time:
- If your mask has removable headgear, attach the straps to the mask frame first. Skipping this step is the most common reason masks come loose during the night.
- Hold the mask cushion against your face, lining it up with your nose (and mouth, for full face masks).
- Pull the headgear over your head and tighten the straps just enough to hold the mask in place. The cushion should sit against your skin without digging in.
- Turn on your machine and breathe normally. Listen for hissing or whistling, and feel for air escaping near your eyes or cheeks.
- If you feel a leak, loosen the strap on the leak side slightly, reseat the mask, then re-tighten. Overtightening usually makes leaks worse, not better, because it deforms the cushion.
How to tell if your mask is leaking
Air leaks are the most common comfort complaint with CPAP. Watch for:
- Whistling or hissing sounds when the machine is running
- Dry, irritated eyes when you wake up (air escaping upward toward your eyes)
- Red marks or pressure sores on your face after a night of use
- The feeling that the air pressure is weaker than it should be
- Your machine reporting high leak rates in its overnight data
Many newer machines include a built-in mask fit check that runs a short pressure test and tells you whether your seal is good. If yours has it, use it for the first few nights with any new mask.
Two habits improve seal quality: wash your face before bed to remove skin oils and skincare residue, and keep facial hair well-groomed where the cushion makes contact. A cushion that has gone soft or sticky will not seal no matter how you adjust it; replacement cushions are in mask parts. If you still cannot get a good seal after a few nights, the mask style or size may be wrong for your face. Never modify a mask to make it fit; replace it instead.
2. Set Up Your CPAP Machine for Success
Where you put your CPAP machine matters more than people realize. The right placement keeps the equipment safe, makes maintenance easy, and reduces the chance of waking yourself by tugging on a tangled hose.
- Use a stable, flat surface. A bedside table or low headboard shelf is ideal. Avoid narrow ledges or anything pets might knock over.
- Keep it lower than the mattress. If condensation builds up in the hose, gravity pulls water back toward the humidifier instead of toward your mask.
- Position it within easy reach. The hose should reach your face with a little slack, but not so much that it tangles when you turn over.
- Mind the cord. Run power cords along the wall rather than across walking paths.
- Leave room for maintenance. You will refill the humidifier, change filters, and wipe down the machine regularly. If it is buried in a corner, those tasks get skipped. Our cleaning routine covers the daily, weekly and monthly steps.
If you travel often, a dedicated travel CPAP machine is worth considering rather than packing your nightstand unit every trip. Travel CPAPs are smaller, lighter, and built for portability.
3. Build a Consistent CPAP Routine
Consistency is what makes CPAP therapy work. People who use their machine every night, even for part of the night at first, adjust faster and report better results than people who use it sporadically. Build CPAP into your bedtime routine the way you would brushing your teeth:
- Wash your face and brush your teeth.
- Check that the humidifier has water and the filter looks clean.
- Connect the hose to the mask.
- Get into bed, fit the mask, and start the machine.
The first two to four weeks are the hardest. According to Alberta Health Services, most people need a few weeks before they can sleep comfortably with CPAP, and a few have problems that take longer to sort out. Wearing the mask every night, even for partial nights, speeds up the adjustment compared to using it only occasionally.
If you wake up and have removed the mask without remembering, do not give up. Put it back on and go back to sleep. Over time, your body learns to tolerate the mask through the full night.
One caution: do not change settings or swap accessories every night searching for the perfect setup. Make one change at a time and give it three to five nights to evaluate. Constant tinkering makes it harder to tell what is helping.
4. Use the Comfort Features Built Into Your Machine
Modern CPAP machines include several features designed to make therapy more comfortable, especially in the first few weeks. As Lung Saskatchewan notes, most new machines include a ramp feature plus settings that ease exhalation, but most users do not take full advantage of them.
The ramp feature
The ramp starts your machine at a lower pressure and increases to your prescribed setting over 5 to 45 minutes. For people who find full pressure overwhelming when trying to fall asleep, a ramp can be the difference between drifting off easily and lying awake fighting the airflow. Almost every modern CPAP, APAP, and BiPAP machine has a ramp button or menu setting.
Heated humidification
Pressurized air dries out the airways quickly, especially during Canadian winters when indoor humidity drops. A heated humidifier adds moisture to the air before it reaches your mask, which prevents dry mouth, nasal irritation, and morning sore throat. If your machine has a humidifier and you are not using it, turn it on tonight. Our CPAP humidifiers article covers the settings.
Heated tubing
If you use a humidifier in a cool bedroom, you may notice water collecting in your hose or condensation spitting at your mask. This is rainout, and it happens when warm, humidified air cools as it travels through the tube. Heated tubing holds a consistent temperature from the humidifier to your mask, so the moisture stays in the air instead of condensing in the hose. It is especially worthwhile for Canadian users in winter, when the gap between bedroom temperature and humidifier output is widest.
Pressure relief (EPR or Flex)
Many machines include a pressure relief feature (ResMed calls it EPR, Philips calls it Flex) that briefly drops the pressure when you exhale. It makes breathing out feel more natural and is one of the most underused comfort settings. Ask your sleep specialist whether enabling it makes sense for your therapy.
Building up tolerance
If you feel claustrophobic the moment you put on the mask, desensitize yourself in low-stakes settings first. Wear the mask for 15 minutes while watching TV. The next day, wear it with the machine running for a few minutes. Build up gradually. Most people who try this report a large improvement in tolerance within a week or two.
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Sign Up Free →5. Monitor Side Effects and Know When to Call Your Provider
Most CPAP side effects are minor and resolve as you adjust to therapy. Some signal a problem that needs medical attention. Watch for the following and report them to your sleep specialist if they persist or worsen:
| Symptom | Usual cause | What to do |
|---|---|---|
| Dry mouth or dry nose | Humidification off or too low | Turn on or increase the humidifier |
| Nasal congestion or runny nose | Humidity needs adjusting | Adjust humidification; a saline rinse can help |
| Bloating or excess gas (aerophagia) | Pressure too high, or mask style | Talk to your sleep specialist |
| Skin irritation or pressure sores | Mask too tight, wrong size, or worn cushion | Loosen, resize, or replace the cushion |
| Removing the mask in your sleep | Fit or comfort issue | Re-fit; try the tolerance steps above |
| Chest discomfort | Needs medical assessment | Call your doctor; do not ignore it |
| Recurrent nosebleeds or respiratory infections | Hygiene or worn equipment | Review cleaning; replace overdue parts; see your doctor if it persists |
Most of these are addressed with a small adjustment to your equipment, your humidification, or your mask. None should be addressed by changing your machine’s pressure yourself. Pressure is calibrated from your sleep study, and adjusting it without medical guidance can remove the benefit of therapy or make symptoms worse.
If a side effect concerns you, or your therapy is not improving your sleep after a month of consistent use, contact your sleep specialist or our team. We can troubleshoot equipment fit, recommend accessories, or refer you back to your provider for a pressure review.
Frequently Asked Questions
How long does it take to get used to a CPAP machine?
Most people adjust within two to four weeks of consistent nightly use. The first week is typically the hardest. Wearing the mask every night, even for partial nights at first, speeds up the adjustment compared to using it only occasionally.
How do I know if my CPAP mask fits properly?
A properly fitted mask creates a quiet seal against your skin without digging in or leaving deep red marks. You should not hear hissing or whistling when the machine is running, and you should not wake up with dry, irritated eyes. Many modern machines include a mask fit check that tests your seal in 30 to 60 seconds.
Why does my CPAP mask leak?
Most leaks come from one of three causes: the mask is the wrong size or style for your face, the headgear is too loose or too tight, or the cushion is worn out. Cushions typically last 1 to 3 months with daily use. If you have ruled out all three and still have leaks, you may need a different mask style.
Can I adjust my CPAP pressure myself?
No. CPAP pressure is set from your sleep study and titration results, and changing it without medical supervision can reduce the effectiveness of your therapy or worsen your symptoms. If the pressure feels wrong, contact your sleep specialist for a pressure review.
How often should I replace my CPAP supplies?
Mask cushions every 1 to 3 months, headgear every 6 months, the mask frame every 12 to 18 months, water chamber every 6 months, and tubing every 3 to 6 months. Disposable filters every 2 to 4 weeks; reusable filters every 6 months. Following the schedule keeps your therapy effective and your equipment hygienic.
Is a prescription required to buy a CPAP machine in Canada?
Yes. CPAP machines are licensed medical devices in Canada and require a valid prescription from a licensed physician or sleep specialist. Masks, accessories, and replacement supplies do not.
Final Thoughts on Using a CPAP Machine
Most people find that CPAP stops feeling like a chore somewhere in the first month. The mask fit settles, the humidifier takes the edge off the dry air, and bedtime goes back to being bedtime. If you are not there yet, that is normal, and it usually comes down to one small adjustment rather than a big one. Give each change a few nights, be patient with yourself, and ask for help early rather than pushing through on your own.
If you would like a second opinion on a mask, a setting, or whether what you are feeling is normal, Crystal and I are happy to help. Crystal is our Registered Respiratory Therapist, and between us we have been helping Canadians get comfortable with CPAP since 2013. Call 1-855-492-3316 or email [email protected] and ask for either of us, seven days a week from 9 AM to 9 PM. Orders over $150 ship free across Canada.
This guide is here for general information and is not a substitute for medical advice. Follow your prescription and your care team’s instructions, and do not change pressure settings without talking to your sleep specialist.
