FREQUENTLY ASKED QUESTIONS
01: What does SNR mean on ear plugs and ear defenders?
SNR stands for Single Number Rating, the average noise reduction in decibels a hearing protector gives, tested to EN 352. A higher SNR means more attenuation, but real-world protection is lower than the lab figure if the fit is poor. Choose an SNR that brings noise below 85 dB(A) at the ear.
02: What are the highest SNR ear plugs?
The highest-rated disposable foam ear plugs reach roughly SNR 36 to 37 dB. A higher SNR isn’t always better, as over-protection can leave you isolated and unable to hear warnings. HSE suggests aiming for about 70 to 80 dB at the ear. Pick the highest SNR ear plugs you can wear comfortably and fit correctly.
03: Earplugs and earmuffs: which is better for noisy work?
Neither is better in every case. Ear plugs are small, work well with other PPE and suit hot or confined work. Ear defenders are quick to put on and remove, easier to fit consistently and suit intermittent noise. For earplugs and earmuffs alike, choose by noise level, comfort and how the job affects fit.
04: Are reusable ear plugs worth buying?
Reusable ear plugs, usually silicone or flanged with a cord or band, cost more upfront but last much longer with cleaning, so they’re often cheaper for daily use. Disposable foam plugs are cheaper per pair and avoid hygiene concerns on dirty sites. Choose reusable plugs if you remove them often, and wash them regularly.
05: What noise level requires hearing protection at work?
Under the Control of Noise at Work Regulations 2005, employers must make hearing protection available at 80 dB(A) daily or weekly exposure, and ensure it is worn at 85 dB(A) or a 137 dB(C) peak. If you must shout to be heard two metres away, get the noise assessed. Hearing protection PPE is a last resort after controlling noise at source.
06: Which ear protection ear plugs are best for loud workplaces?
It depends on the noise and task. Foam and rocket-style ear plugs give high attenuation for constant noise such as machinery or construction. Corded or banded plugs suit on-off use and are harder to lose. Check the SNR and EN 352 marking, and choose a size that seals your ear canal comfortably.
07: Can I wear ear plugs and ear defenders together?
Yes, double protection is sometimes used in very loud environments, but the combined protection is less than the two SNR values added together, typically only a few decibels more than the better one. It can also leave you isolated from warnings. Use it only where your risk assessment shows a single protector isn’t enough.
08: Can I wear ear defenders with a respirator or dust mask?
Yes, but test the combination first. Ear plugs rarely interfere with a respirator mask or its straps. Ear defenders also work with most disposable masks and half masks, but check that the headband and cups don’t pull on the straps, and that both the respirator and the muffs still seal properly. Our range also includes FFP dust masks.
09: How do I clean and replace reusable ear plugs and ear defenders?
Wash reusable ear plugs with mild soap and warm water, dry them fully and store them in a clean case. Replace them if they become hard, cracked, misshapen or uncomfortable. For ear defenders, wipe the cups and replace worn cushions following the manufacturer’s guidance. Throw away disposable foam plugs once they are dirty.
10: Do ear protection ear plugs and ear defenders need to meet EN 352?
Yes. Hearing protectors sold as PPE should meet the EN 352 standard (part 1 for earmuffs, part 2 for ear plugs) and carry CE or UKCA marking. The packaging or product should show the SNR. Avoid unmarked or novelty ear plugs for work, as their noise reduction isn’t verified.
