A continuous positive airway pressure (CPAP) machine treats obstructive sleep apnea (OSA) by pushing steady, pressurized air through a mask to keep airways open. CPAP machines use a motor, filter, ...
Verywell Health on MSN
Why you may not feel better after using CPAP for sleep apnea
Medically reviewed by Smita Patel, DO Key Takeaways CPAP might not work right away, and feeling better can take several weeks ...
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