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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.

ステップバイステップガイド

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

解いた例

入力

2 hours/day at 75dB, 10 years

結果

Low absolute risk - volume is manageable, but cumulative daily exposure still accumulates over decades

よくある質問

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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