Helmet-mounted clip-on ear defenders with SNR 28dB attenuation and 100% metal-free construction. Compatible with Portwest Endurance and Height Endurance helmets. CE-CAT III certified with colour-coded cups for quick attenuation level identification.
The Portwest PW05 HV Extreme are clip-on ear defenders designed to mount directly onto compatible safety helmets, giving you reliable hearing protection without the faff of a separate headband. Part of the HV Extreme colour-coded range, these are built with fully plastic arms, making them a solid choice wherever non-conductive PPE is a requirement. If you are working near live electrical equipment or in environments where metal components present a risk, the 100% metal-free construction matters more than it might seem.
SNR 28dB puts these firmly in the high attenuation bracket. That is suitable for genuinely loud environments, chainsaw work, heavy groundworks, or any site where sustained noise exposure is a concern. The colour-coded cups make it straightforward to grab the right defenders at a glance, which is exactly the kind of thing that saves time when you have a box of PPE and three people asking for something different.
PW05 Clip-On Ear Defenders: Comfort and Practical Fit
The adjustable dual pin system lets the ear cups be positioned correctly for different head shapes and helmet setups. When you don’t need them, the defenders fold back and sit out of the way rather than swinging around or snagging on things. That repositioning feature sounds minor until you’ve spent a day with ear defenders that won’t stay put.
These PW05 clip-on ear defenders are designed specifically for use with Portwest Endurance and Height Endurance helmets. The attachment mechanism is straightforward, and once clipped on they stay secure through the kind of movement that comes with an active working day. The retail packaging is designed to work with vending machines as well, which is handy for larger sites managing PPE distribution.
CE certified and CE-CAT III rated, so there’s no guesswork on compliance. If your site requires documented hearing protection standards, these cover it. Materials include ABS, mono PU, polyoxymethylene and foam throughout the cup and headband assembly.
Pro Tip: When clipping onto a Portwest Endurance helmet, check the dual pin alignment before committing the full clip into place — a slightly off-centre fit reduces both the seal quality and the effective attenuation you actually get.
These ear defenders are used on construction sites, civil engineering projects, forestry work, demolition, and anywhere sustained loud machinery is part of the job. The metal-free build makes them a practical choice for electricians and others working near live conductors, where standard metal-framed PPE would introduce unnecessary risk. Height workers and those using Portwest helmets as part of a full PPE system will find the clip-on design keeps hearing protection integrated rather than piled on top of everything else.
Best For
High noise construction environments
Electrical work requiring non-conductive PPE
Forestry and groundworks
Height working with compatible helmets
Sites with vending machine PPE distribution
Compatible With
Portwest Endurance helmet
Portwest Height Endurance helmet
Key Features
SNR 28dB attenuation
100% metal free construction
Adjustable dual pin positioning system
Colour-coded cups for attenuation identification
Repositionable when not in use
CE certified, CE-CAT III rated
Individually packed for vending machines
Not suitable for: Not suitable for use without a compatible Portwest Endurance or Height Endurance helmet — these are clip-on only and have no standalone headband. Not designed for underwater or extremely high-humidity immersion environments.
Attach the ear defenders to the helmet by aligning the clip arms with the dedicated slots on your Portwest Endurance or Height Endurance helmet, then engage the dual pin system until both sides click securely into position. Adjust the cup positioning so the cushions sit evenly over both ears before entering the noisy area. When not in active use, fold the cups back into the rest position rather than removing the defenders from the helmet entirely.
Confirm your helmet is a compatible Portwest Endurance or Height Endurance model before fitting
Align the plastic clip arms with the helmet's ear defender slots on both sides
Press the dual pin connectors into position until both sides are firmly engaged
Adjust the cup height and angle using the dual pin system to ensure an even seal over both ears
Check the cushions sit flat against the head with no gaps before entering a high-noise area
When hearing protection is temporarily not needed, fold the cups rearward into the rest position rather than removing them
Are the PW05 ear defenders compatible with all safety helmets?
No. These clip-on ear defenders are specifically designed for use with Portwest Endurance and Height Endurance helmets. They will not clip onto helmets from other manufacturers or other Portwest helmet models that lack the correct attachment slots.
Why does the metal-free construction matter for these ear defenders?
In environments where non-conductive PPE is required, such as electrical installation or work near live conductors, metal components in PPE can present a risk. The 100% metal-free build on the PW05 means they meet the requirements for use in those settings without needing a separate non-conductive hearing protection solution.
The PW05 is constructed from ABS plastic, mono PU foam, polyoxymethylene (POM) for the clip mechanism, and acoustic foam within the ear cups. The fully plastic design achieves a 100% metal-free build, meeting the requirements for non-conductive PPE classification. Attenuation is rated at SNR 28dB. The product carries CE certification under CAT III, the highest personal protective equipment category covering risks that may cause serious harm.
SKU
PW05GOR
Colour
Grey/Orange
SNR Attenuation
28dB
Metal Free
Yes, 100%
Certification
CE, CE-CAT III
Compatible Helmets
Portwest Endurance, Portwest Height Endurance
Materials
ABS, Mono PU, Polyoxymethylene (POM), Foam
Fitting Type
Clip-on (helmet mounted)
Packaging
Individually packed, retail box suitable for vending machines
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