Decibel Shield
Decibel chart › Pneumatic rock drill
How loud is a pneumatic rock drill?
A pneumatic rock drill measures about 115 dB, roughly as loud as an emergency siren. At 115 dB it is at or above the 85 dB line where hearing damage starts: NIOSH puts the safe limit at about 28 seconds a day. Normal conversation runs about 60 dB for comparison.
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| Decibel level | 115 dB |
|---|---|
| Hearing risk | High risk — Classic NIOSH occupational source — unprotected exposure is measured in seconds |
| Safe exposure (NIOSH) | About 28 seconds a day |
| Typical setting | work |
Figures sourced to NIOSH. See the full decibel levels chart for every source.
How a pneumatic rock drill compares
On the decibel scale, 115 dB sits above the 85 dB line where sustained exposure damages hearing. Sounds at a similar level:
- Emergency siren 110–129 dB
- Chainsaw 110 dB
- Shouting or barking directly in the ear 110 dB
- Thunderclap 120 dB
Everything at this level, with safe exposure times: how loud is 115 dB? →
How loud is a pneumatic rock drill?
A pneumatic rock drill measures about 115 dB, roughly as loud as an emergency siren. At 115 dB it is at or above the 85 dB line where hearing damage starts: NIOSH puts the safe limit at about 28 seconds a day. Normal conversation runs about 60 dB for comparison.
Is a pneumatic rock drill dangerous to hearing?
Yes — at 115 dB, a pneumatic rock drill is loud enough to damage hearing over time. NIOSH limits safe exposure to about 28 seconds a day; use hearing protection beyond that.
Measure it yourself
Decibel levels vary with distance and surroundings. Check the real level where you are with the free online decibel meter — no install, nothing recorded — or see the full decibel levels chart.