Helmet-mounted ear defenders with 100% metal-free construction and SNR 23dB attenuation. Clip-on design fits Portwest Endurance and Height Endurance helmets. Colour-coded cups for quick identification. CE certified, CE-CAT III.
The Portwest PW03 HV Extreme clip-on ear defenders are helmet-mounted hearing protection designed for environments where metal-free PPE is a requirement. All-plastic arms mean these are safe to use around electrical hazards, live panels, and anywhere that conductive components create a risk. With an SNR of 23dB, they sit in the lower attenuation bracket, which is actually a deliberate choice rather than a compromise — over-protection is a real problem on site, and workers tuning out too much ambient sound can miss verbal warnings or approaching vehicles.
These attach directly to Portwest Endurance and Height Endurance helmets via a clip-on system that takes seconds to fit. The adjustable dual pin positioning means you can dial in the fit around your head shape, and when you need to pull them off mid-job, the cups fold back out of the way without coming off the helmet entirely. No fumbling around in your pocket for ear defenders you left in the van.
Where the PW03 Ear Defenders Earn Their Place
Colour coding is a feature worth paying attention to on a busy site. The grey and green cups make the SNR level instantly identifiable at a glance, which matters when supervisors are checking PPE compliance across a crew. Mix-ups between high and low attenuation defenders happen more than people admit, and a colour system helps keep that sorted without needing to read the small print on the cup housing.
The HV Extreme range is Portwest’s premium colour-coded family, and the PW03 brings metal-free compatibility into that lineup. The cups are built from ABS and polyoxymethylene, with mono PU foam cushioning the seal against the ear. Construction is lightweight enough to wear for extended periods without the helmet feeling unbalanced.
CE certified and classed as CE-CAT III personal protective equipment. Each unit is individually packed, which suits vending machine distribution and retail display as well as standard trade supply. If you’re kitting out a team working around electrical installations, height work, or anywhere a standard metal-armed defender creates a compliance issue, the PW03 clip-on ear defenders cover it cleanly.
Pro Tip: Always check that your helmet's clip rail is compatible before ordering: the PW03 is designed specifically for Portwest Endurance and Height Endurance helmets and will not clip securely to most other brands.
These ear defenders are suited to construction, electrical installation, scaffolding, roofing, and any trade work where workers are wearing a compatible safety helmet throughout the shift. The metal-free build makes them a practical choice around live electrical work, MRI facilities, and environments with strict non-conductive PPE requirements. At SNR 23dB they work well in moderate noise environments such as general construction, groundworks, and plant operation where full isolation would cause more problems than it solves.
Best For
Electrical installation and live panel work
Height and scaffolding work
General construction and groundworks
Environments requiring non-conductive PPE
Crew-wide PPE compliance with quick visual checks
Compatible With
Portwest Endurance helmet
Portwest Height Endurance helmet
Key Features
SNR 23dB attenuation
100% metal free construction
Adjustable dual pin positioning system
Colour-coded cups for attenuation level identification
Cups fold back when not in use
CE certified, CE-CAT III
Individually packed for vending machine use
Not suitable for: Not compatible with non-Portwest helmets or hard hats without the correct clip rail. Not intended for high-noise environments where higher attenuation levels are required — check your noise assessment before selecting SNR 23dB.
Clip the PW03 arms onto the rail of a compatible Portwest Endurance or Height Endurance helmet before putting the helmet on. Use the dual pin adjustment to position the cups so they sit flush and level against each ear. The seal should be firm but not uncomfortable — adjust pin positions until the fit feels stable.
When you need to move away from noisy equipment, fold the cups back to the stowed position on either side of the helmet rather than removing them entirely. This keeps them to hand and reduces the chance of losing or forgetting them when noise starts back up.
Confirm your helmet model is a Portwest Endurance or Height Endurance before fitting
Slide the plastic clip arms onto the helmet rail on each side until they click into position
Use the dual pin system to adjust the cup height so each cup aligns with your ear
Press the cups gently against your ears and check the foam seal sits flush all the way around
Re-adjust pin positions if one side sits higher or lower than the other
Fold cups back to the stowed position when moving away from noise sources
Check the cups and foam cushions regularly for wear or damage and replace if the seal is compromised
Will the PW03 clip onto any safety helmet?
No. These are designed specifically for the Portwest Endurance and Height Endurance helmet range. The clip arms are shaped to fit the rail system on those helmets and will not attach securely to most other brands. If you are using a different helmet, check Portwest's full range for a compatible option.
Why choose SNR 23dB rather than a higher attenuation defender?
Higher attenuation is not always better. In moderate noise environments, over-protecting hearing can cause workers to miss spoken instructions, alarms, or warning signals, which creates its own safety issue. SNR 23dB is appropriate for many general construction and plant environments — always base your selection on a proper noise risk assessment for the specific task.
The PW03 is constructed from ABS and polyoxymethylene (POM) for the hard cup shells and arms, with mono polyurethane foam providing the acoustic seal and cushioning. POM is a rigid engineering plastic with good dimensional stability, which helps maintain consistent clip tension over time. The unit is CE certified and classified as CAT III PPE, meaning it falls under the most stringent personal protective equipment category under EU and UK regulations.
SKU
PW03GGN
Colour
Grey/Green
SNR Attenuation
23dB
Metal Free
Yes, 100%
Mounting Type
Clip-on helmet mounted
Compatible Helmets
Portwest Endurance, Portwest Height Endurance
Materials
ABS, Polyoxymethylene (POM), Mono PU foam
Certification
CE certified, CE-CAT III
Packaging
Individually packed
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