High SNR 36dB ear defenders with PU padded headband, reflective trim, and dual pin adjustable cups. CE Cat III certified. Meets EN 352-1:2002 and ANSI S3.19 NRR 30dB standards. Comfortable fit for long shifts on site.
The Extreme Ear Defenders HV PS43 are high SNR ear defenders rated at 36dB, making them one of the stronger options available for noisy environments on site. Where most standard ear muffs get the job done at lower noise levels, these are built for sustained exposure to heavy machinery, grinding, drilling, and similar high-decibel work. They carry CE Cat III certification, which is the classification reserved for PPE that protects against irreversible or life-threatening risks. In short, these are not a token gesture toward hearing protection.
The headband is padded with PU foam and trimmed with reflective material, which serves two purposes. First, it keeps the pressure comfortable enough to wear for a full shift without the usual aching that cheaper defenders cause. Second, the reflective trim adds a degree of visibility in low light or busy site conditions. A small detail, but one that matters when you are working around plant or in poorly lit areas.
Fit and Adjustment on the Extreme Ear Defenders HV
The dual pin adjustable cup system gives a more reliable fit than the basic single-axis sliders found on entry-level defenders. Each cup adjusts independently, so the seal against the head is consistent even on people with different head shapes or who wear glasses. A poor seal is the most common reason ear defenders underperform, so getting this right matters more than most people realise.
The cups are colour coded, which sounds like a minor point until you are managing a team and trying to identify who has the right protection for the job. It also makes it easier to sort and restock defenders in a busy site welfare unit or PPE store.
Packaging and Practical Site Use
The PS43 comes in retail-ready packaging and is individually packed, which means it is suitable for vending machine distribution as well as standard PPE stores. If your site runs a PPE vending system, these fit the format. If not, the retail box still presents well enough to hand out without looking like you grabbed a handful of loose defenders from a bin.
The materials used include ABS plastic for the cups, PU foam for the cushioning, polyoxymethylene for the structural components, and standard acoustic foam for attenuation. These are not unusual materials for this category, but the combination is what gives the PS43 its SNR 36dB rating alongside practical day-to-day durability.
For anyone specifying PPE across multiple trades, having a pair of high SNR ear defenders that also carry reflective trim and individual packaging simplifies procurement and site compliance. These cover groundworks, demolition, steel fixing, and any other task where noise levels are consistently high throughout the working day.
Pro Tip: When fitting ear defenders, pull the top of the ear upward and outward before positioning the cup, so the ear sits fully inside the seal rather than folded against the edge, which is the single most common reason rated defenders perform well below their SNR in practice.
The Extreme Ear Defenders HV PS43 are used wherever sustained high noise levels are present, including groundworks, demolition, concrete cutting, steel fabrication, and plant operation. They are suitable for construction sites, manufacturing environments, motor sports, and any setting where noise exposure regularly exceeds 85dB. The reflective trim makes them particularly practical for roadside works and low-visibility conditions. Trades including groundworkers, steel fixers, demolition crews, and plant operators will get the most use from these.
Best For
Groundworks and demolition
Concrete cutting and grinding
Plant and machinery operation
Steel fabrication environments
Roadside and low-light site work
High-noise manufacturing
Available In
High-visibility colour coded cups
Reflective trim headband
Individual retail packaging
Vending machine compatible format
Key Features
SNR 36dB attenuation rating
ANSI S3.19 NRR 30dB
EN 352-1:2002 compliant
CE Cat III certified
Dual pin adjustable cup system
PU padded headband
Reflective trim for site visibility
ABS, PU foam, and polyoxymethylene construction
Not suitable for: Not suitable as a substitute for hearing protection in environments requiring electronic communication or level-dependent protection. Not designed for underwater or chemical exposure.
Extend the headband until the cups sit level with the ears. Pull each ear upward and outward, then position the cup over the ear so the foam cushion forms a full seal against the head. Check that no hair, glasses arms, or clothing is caught between the cushion and skin, as even a small gap significantly reduces attenuation. Adjust the dual pin sliders until the cup pressure is firm but comfortable.
For all-day wear, check the headband padding and cup cushions periodically for compression or damage. Worn cushions reduce the acoustic seal and lower the effective SNR below the rated 36dB. Replace cushions when they show visible flattening or cracking.
Inspect the ear defenders before use, checking that cups, cushions, and headband are undamaged
Extend the headband to a comfortable starting width before fitting
Pull the top of one ear upward and outward, then position the cup fully over the ear
Repeat for the second ear, ensuring both cups sit level and symmetrical
Check that no hair, glasses arms, or collar material breaks the seal between cushion and skin
Use the dual pin adjusters to fine-tune cup position and pressure until the fit is secure
Remove by gripping the headband, not the cups, to avoid distorting the seal cushions over time
What is the difference between SNR 36dB and NRR 30dB, and which rating applies in the UK?
SNR (Single Number Rating) is the European standard used in the UK and across the EU, governed by EN 352-1:2002. NRR (Noise Reduction Rating) is the equivalent American standard under ANSI S3.19. For UK site use and compliance purposes, the SNR 36dB figure is the relevant one. The NRR 30dB rating is included on the PS43 for reference when working on international projects or supplying to American standards.
Are these ear defenders suitable for all-day wear on a construction site?
Yes. The PU padded headband and foam cup cushions are designed for extended wear without the clamping pressure that makes cheaper defenders uncomfortable after an hour or two. The dual pin adjustment also helps distribute pressure more evenly, which reduces fatigue over a full shift. As with any ear defender, comfort will reduce if the cushions become compressed with age, so check them regularly and replace when worn.
What does CE Cat III certification mean for these ear defenders?
CE Category III covers PPE designed to protect against risks that are serious, irreversible, or potentially fatal, which is the classification that covers permanent hearing damage. It means the PS43 has been independently tested and certified to a higher standard than basic CE-marked PPE. For sites where hearing protection is a legal requirement under the Control of Noise at Work Regulations 2005, Cat III certification confirms these defenders meet the appropriate level of protection.
The PS43 ear defenders are constructed from ABS plastic cups, PU foam headband padding, polyoxymethylene structural components, and acoustic foam cup inserts. The combination achieves an SNR of 36dB under EN 352-1:2002 testing and NRR 30dB under ANSI S3.19. CE Cat III certification confirms independent third-party verification. Reflective trim on the headband meets general site visibility requirements without requiring a separate hi-vis accessory.
SKU
PS43GRR
SNR Rating
36dB
NRR Rating
30dB
Standard
EN 352-1:2002
ANSI Standard
ANSI S3.19
CE Category
Cat III
Materials
ABS, Mono PU, Polyoxymethylene, Foam
Headband
PU padded with reflective trim
Cup Adjustment
Dual pin adjustable
Packaging
Individual retail box, vending machine compatible
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