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Free Decibel Meter

75 Decibels — How Loud Is It?

Loud

75 dB is about as loud as flushing toilet. A flushing toilet or a bedside alarm clock both reach about 75 dB at close range — loud but brief, everyday household sounds rather than sustained background noise. Occasional exposure at this level carries essentially no hearing risk; it is prolonged daily exposure at or above it, for years, that occupational-health guidance is concerned with.

What does 75 dB sound like?

  • 75 dB — Flushing toilet
  • 75 dB — Alarm clock, bedside
  • 78 dB — Vacuum cleaner

Safe exposure time at 75 dB

Under NIOSH's Recommended Exposure Limit (85 dB, 3 dB exchange rate), safe unprotected exposure at 75 dB is effectively unlimited. Under OSHA's legal Permissible Exposure Limit (90 dB, 5 dB exchange rate), it is effectively unlimited.

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    Frequently asked questions

    What everyday sounds reach 75 dB?
    A flushing toilet and a bedside alarm clock both commonly measure around 75 dB at close range — brief, loud, but not sustained exposures.
    Is 75 dB harmful with repeated exposure?
    It's below NIOSH's 85 dB action threshold for 8-hour exposure, so occasional exposure carries low risk. Very long daily exposure at this level over many years is still worth being mindful of.

    Sources