Hearing Protection

Understanding BS EN 352 and SNR Ratings

BS EN 352:2020 is the UK and EU standard covering hearing protection equipment—ear-muffs, ear plugs, and combined designs. Every certified product carries an SNR (Single Number Rating) indicating expected noise reduction in decibels. To estimate effective exposure: take the C-weighted sound level, subtract the SNR, then add 4 dB. For example, an SNR 30 dB earplug in a 115 dB environment brings exposure down to roughly 89 dB at the ear—still above the 85 dB mandatory protection threshold, so you'd need higher SNR or combined protection (plugs under muffs). HSE advises deducting 4 dB from manufacturer SNR figures for real-world performance, accounting for poor insertion or seal gaps.

Key Selection Criteria

Match protection type to your noise profile and shift pattern. Disposable foam ear plugs suit single-use or visitor scenarios; earplugs disposable options are economical when bought in bulk. Reusable corded ear plugs and non disposable ear plugs make sense for daily wear—wash between shifts and replace when foam degrades. Banded ear plugs sit around the neck between exposures, ideal for intermittent noise. Industrial ear defenders and construction ear defenders deliver higher SNR (often 30-35 dB) without insertion discomfort; look for adjustable headbands and replaceable cushions for all-day comfort. Electronic hearing protection for shooting amplifies safe sounds (range commands, conversations) while cutting peaks above 82 dB—making it the best hearing protection for shooting and best in ear electronic hearing protection for shooting uk applications where situational awareness matters.

Legal Exposure Limits and Over-Protection Risk

UK Control of Noise at Work Regulations 2005 set three thresholds: • 80 dB(A) daily/weekly (lower action value)—employers must offer ear protection workplace solutions on request • 85 dB(A) (upper action value)—hearing protection mandatory, ear protection zones marked • 87 dB(A) exposure limit (with protection)—must not be exceeded. Target effective exposure at the ear: 70-80 dB. Over-protection (below 70 dB) impairs hearing warning alarms and speech, creating new safety risks. If workers remove protection to communicate, you've specified the wrong type.

Common Insertion and Fit Mistakes

Poorly inserted ear plugs cut effectiveness by 10-15 dB. Roll foam plugs into a tight cylinder, pull the ear up and back to open the canal, insert fully, and hold 20-30 seconds while foam expands. For ear muffs workplace and work ear defenders, check the seal around spectacle arms and long hair—gaps leak sound. Small ear canals struggle with standard foam; ear plugs small or tapered designs improve fit. Corded designs (corded ear plugs, pod plug styles) prevent loss but the cord must hang forward, not pull the plug out. Replace foam plugs when they no longer spring back, and ear defender cushions when cracked or hardened. Custom hearing protection (moulded to ear impressions) is an option for workers who cannot achieve consistent seal with off-the-shelf products.

At GlovesnStuff, we stock certified hearing protection ear plugs, ear defenders, and electronic options with clear SNR ratings and fast UK delivery—helping you meet Control of Noise at Work obligations across construction, manufacturing, and high-noise industrial sites.