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Insurance says rent first, the math says buy. Here is what a CPAP rental really includes, when the monthly fees stop making sense, and how to own one without renting.

Every machine page lists the same four features. Only one of them has trial evidence that people use their CPAP more. Here is which features matter for your situation.

The right CPAP mask matches how you breathe, how you sleep, and your pressure. This guide helps you choose by situation, get the size right, and fix common fit problems.