Independent CPAP Comparison
The CPAP Machines Worth Buying, Compared.
The 7 machines covering 90% of what clinicians prescribe — full specs, plain-language explanations, and honest side-by-side comparison.
Getting diagnosed with sleep apnea is overwhelming enough. Then you’re handed a prescription and told to “go get a CPAP” — as if that explains anything. This tool covers every machine worth considering in 2025–2026: full specs, real-world context, and honest comparison. Pick a machine from the sidebar to explore it, or jump to Compare All Machines for the full side-by-side view.
Which type do you need?
The standard starting point. These machines automatically adjust pressure throughout the night based on your breathing. Most newly diagnosed patients are prescribed an APAP. If your prescription just says “CPAP,” this is almost certainly what you’ll be buying.
Uses separate pressures for inhale and exhale, making it easier to breathe against the airflow. Typically prescribed for more complex cases, higher pressure requirements, or patients who struggled with standard CPAP.
Compact, lightweight, and FAA-approved for in-flight use. Some patients use these as their only machine; most use them as a second unit for trips.
Common questions
What’s the difference between CPAP and APAP?
Fixed CPAP delivers one constant pressure all night. APAP varies pressure breath-by-breath based on what your airway actually needs. Most machines sold today are APAP, and most prescriptions allow either. The terms are often used interchangeably.
Do I need a prescription?
Yes — in the US and Canada, CPAP machines are Class II medical devices requiring a valid prescription to purchase. Most online retailers will ask you to submit one before shipping.
Can I use any mask with any machine?
Generally yes. Masks connect via a standard 22mm fitting and are broadly cross-compatible. Your machine choice doesn’t lock you into a mask brand.
What is AHI?
Apnea-Hypopnea Index — the number of breathing disruptions per hour of sleep. Your machine tracks this nightly. Under 5 is considered normal; under 10 is acceptable on therapy. It’s the primary metric your doctor will use to evaluate whether treatment is working.
Which machine should I get?
There’s no single right answer — it depends on your prescription type, budget, and whether portability matters. Explore individual machines from the sidebar or hit Compare All to see everything side by side.
Compare All CPAP Machines
Every spec, side by side.
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