Portwest HV Extreme Ear Defenders Medium Clip-On Metal Free

Reliable helmet-mounted hearing protection for everyday industrial hazards — and fully non-conductive throughout. The Portwest PW04 HV Extreme Medium Clip-On Ear Defenders combine the premium build quality of the HV Extreme range with 100% metal free construction, delivering certified medium attenuation performance in environments where non-conductive PPE is either required or preferred.

Fitted with plastic arms in place of conventional metal components, the PW04 is engineered to meet the safety demands of electrical trades, utilities, and any application where conductive materials must be avoided. Designed to clip directly onto Portwest Endurance and Height Endurance helmets, they integrate quickly and securely into a complete head protection system — no tools required. The adjustable dual pin system allows for multiple positioning options, ensuring a stable, comfortable fit across varying head shapes and helmet sizes, while the repositionable ear cups can be swung aside when protection is temporarily not needed, without removing the defenders from the helmet.

With an SNR rating of 26dB certified to EN 352-3, the PW04 sits in the medium attenuation bracket — making it the right choice for harmful noise environments such as general construction, manufacturing, engineering workshops, and utilities work, where a balance between effective noise reduction and situational awareness is required.

Colour-coded cups allow supervisors and wearers to identify the correct attenuation level instantly, supporting safe equipment selection and team-wide PPE compliance. Supplied in a retail presentation box and individually packed for vending machine use.

Key Features:

• 100% metal free with plastic arms — safe for non-conductive PPE applications
• Easy clip-on design for rapid attachment to compatible helmets
• Compatible with Portwest Endurance and Height Endurance helmets
• Adjustable dual pin system for multiple positioning options and a personalised fit
• Repositionable ear cups for convenience in fluctuating noise environments
• Colour-coded cups for quick and accurate attenuation level identification
• SNR 26dB medium attenuation — effective protection against harmful noise levels
• Contrast colouring for enhanced style and visibility
• Retail box presentation for point-of-sale display
• Individually packed for vending machine compatibility
• CE certified to CE-CAT III standard
• Compliant with EN 352-3 | SNR 26dB

Materials: ABS, Mono PU, Polyoxymethylene, Foam Product Code: PW04

Which helmets are the Portwest PW04 ear defenders compatible with? The PW04 is specifically designed for use with Portwest Endurance and Height Endurance helmets. They are a clip-on product and are not intended for standalone use without a compatible helmet.

What makes the PW04 different from the PW03? Both the PW03 and PW04 are metal free clip-on ear defenders from the HV Extreme range, compatible with the same Portwest helmets. The key difference is attenuation level — the PW03 offers low attenuation at SNR 23dB, suited to environments where over-protection is a concern, while the PW04 provides medium attenuation at SNR 26dB, making it the better choice for more consistently noisy environments where a higher level of hearing protection is needed.

Why choose metal free ear defenders for helmet-mounted hearing protection? In environments involving electrical installations, live conductors, or other conductive hazards, metal components in PPE introduce an unnecessary risk. The PW04 is constructed entirely without metal, making it safe and compliant for electrical trades, utility work, and any application where non-conductive equipment is specified by risk assessment or site rules.

What noise environments is SNR 26dB suitable for? An SNR of 26dB is classified as medium attenuation and is appropriate for harmful noise environments such as construction sites, engineering workshops, manufacturing floors, and utilities work. It offers meaningful noise reduction while retaining enough situational awareness for workers to hear verbal communication and safety signals.

Can the PW04 ear defenders be repositioned without removing them from the helmet? Yes. The PW04 features repositionable ear cups that can be swung away from the ears when hearing protection is not immediately required, allowing workers to move in and out of noisy areas without having to detach and reattach the ear defenders each time.

Are the PW04 ear defenders suitable for retail and vending machine use? Yes. The PW04 is supplied in a retail presentation box for point-of-sale display and is individually packed for full compatibility with PPE vending machines.