Modern CPAP machines are designed to be quiet, but some noise is normal. To reduce noise: 1) Place the machine below bed level on a stable surface to minimize vibration. 2) Check for air leaks in the mask or tubing—leaks create noise. 3) Ensure the air filter is clean and properly seated. 4) Keep the humidifier chamber properly filled. 5) Check tubing connections are secure. 6) Consider a newer machine if yours is several years old—newer models are quieter. If your machine suddenly becomes louder, it may need servicing or replacement.
Reduce CPAP noise by proper placement, fixing leaks, cleaning filters, and ensuring secure connections.