Hearing Protection

Measure the noise first

Use a noise survey or dosimetry (IEC 61672-1 meters, IEC 61252 dosimeters) to establish levels. Use the SNR or H/M/L values to check that the protector reduces exposure to roughly 70-80 dB(A); over-protection makes it hard to hear warnings.

Earplugs or earmuffs

Earplugs (EN 352-2) are cool and compact, which suits hot climates and work with other headgear. Earmuffs (EN 352-1) are easy to fit correctly and suit intermittent noise. Helmet-mounted muffs (EN 352-3) must be approved for your helmet model.

Communication and awareness

Where workers need to hear reversing alarms or speech, consider level-dependent muffs (EN 352-4). For radio users, specify EN 352-6 muffs with audio input.

Heat and hygiene

Earmuff cushions become uncomfortable and unhygienic in heat; use hygiene kits and replace cushions periodically. Disposable plugs should only be used once, and reusable plugs must be cleaned.

Fit and training