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Are white noise machines safe for babies? Can they cause hearing damage?

Last updated on April 10, 2026

White noise machines are safe for babies when used at appropriate volume levels and distance. The evidence supporting white noise for improving infant sleep is positive, and there is no good evidence linking typical-use white noise to developmental delays or hearing damage.

Evidence Summary

  • Data source: Hugo et al. (2014) sound level study; infant sleep RCTs; AAP noise guidelines

  • Key finding: The Hugo et al. study found that white noise machines placed close to infants at maximum volume exceeded safe sound levels — but this reflects misuse, not typical use

  • Key finding: At 7 feet distance and moderate volume (~50–65 dB), white noise is well within safe hearing thresholds for infants

  • Key finding: White noise has been shown in small RCTs to reduce infant crying and improve sleep onset — a real benefit

  • Caveat: No large long-term studies on developmental outcomes from white noise exist; absence of evidence is not evidence of absence, though current data is reassuring

Confidence: Moderate confidence — safety at typical use levels is well-supported by acoustic data; long-term developmental data is sparse but reassuring.

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