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Noise-induced hearing loss (NIHL) is permanent and cumulative. The safe daily limit is 85dB for 8 hours - for every 3dB increase, safe exposure time halves.
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- 1Safe: 85dB for 8 hours; 88dB for 4 hours; 94dB for 1 hour
- 2Damage is cumulative - hair cells destroyed by noise do not regenerate
- 3Tinnitus (ringing) is an early warning sign of overexposure
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What is Hearing Loss Risk?
Noise-induced hearing loss (NIHL) is permanent and cumulative. The safe daily limit is 85dB for 8 hours - for every 3dB increase, safe exposure time halves
How accurate is the Hearing Loss Risk calculator?
The calculator uses the standard published formula for hearing loss risk. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.
What units does the Hearing Loss Risk calculator use?
This calculator works with inches. You can enter values in the units shown — the calculator handles all conversions internally.
What formula does the Hearing Loss Risk calculator use?
The calculator applies the standard formula for this type of calculation. See the 'How It Works' steps above for the detailed formula breakdown.
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