Your ears don’t have a “check engine” light. Damage accumulates gradually, and by the time you notice it, some of the loss may be permanent. The goal of hearing safety is simple: reduce the dose. That means managing level, time, and protection.
Exposure basics
A commonly used guideline is 8 hours at 85 dB(A), halving the allowable time with every +3 dB. So 88 dB → 4 hours, 91 dB → 2 hours, 94 dB → 1 hour, and so on. Short bursts at very high levels can also be risky; limit peaks and add quiet breaks.
Picking protection
Foam earplugs provide high attenuation when inserted correctly: roll, pull up the ear, insert deeply, and hold while they expand. Earmuffs are quick to don and great for intermittent noise. For best results, combine plugs and muffs in extreme conditions. Don’t over‑protect in situations where you need to communicate; moderate protection plus distance can be better.
Fit is everything
An ill‑fitted earplug can lose most of its rated benefit. If protection doesn’t feel snug or speech sounds strangely “boomy,” try reinserting or sizing up. With muffs, check the seal around glasses and hair.
Smart habits
- Carry a spare pair of earplugs in your bag or toolbox.
- Take 5‑minute quiet breaks each hour during loud tasks.
- Stand upwind and farther from sources when possible; distance reduces dose.
- Log your loudest activities for a week to spot patterns you can change.
Myths to ignore
- “If it doesn’t hurt, it’s safe.” Not true—damage can occur below the pain threshold.
- “Foam plugs always block enough.” Only if inserted properly.
- “Bass is harmless.” Low frequencies contribute to dose and fatigue.
Bringing the meter into safety
Use LAeq to estimate dose across a task, and keep an eye on peaks. If your readings creep above your planned level, add protection, increase distance, or shorten the task. A simple plan beats guesswork.