How noisy is the oxygen concentrator? Can I sleep with it?

Our concentrators are quiet enough to use while sleeping. They produce a steady white noise that many people find calming, though sensitivity varies.

Noise levels:

• 5 LPM: ~45 dB (similar to a quiet refrigerator)

• 10 LPM: <60 dB (similar to a running dishwasher)

Both produce a steady hum with a soft, intermittent woosh.