EARMUFF PELTOR H540A

For extreme noise environments, the 3M™ PELTOR™ Optime™ III H540A sets the benchmark for high-performance hearing protection. Engineered for maximum attenuation (SLC₈₀ 33 dB, Class 5), these earmuffs are ideal for the most demanding industrial conditions such as airports, marine engine rooms, power stations, mining sites, and heavy manufacturing.

Utilising double-casing technology, the Optime™ III minimises resonance within the earcup housing to deliver exceptional high-frequency noise attenuation. The large internal cup space helps reduce heat and moisture build-up, while the soft, wide foam cushions lower contact pressure, ensuring superior comfort and wearer compliance over long shifts.

Built from tough dual-moulded ABS, these earmuffs are designed for durability in harsh environments. Replaceable hygiene kits (cushions and inserts) make maintenance simple, extending product life and ensuring consistent performance.

Key Features:

• Class 5 (SLC₈₀ 33 dB) hearing protection for extreme noise environments

• Double-casing technology reduces resonance for maximum high-frequency attenuation

• Large internal cup space helps minimise heat and moisture build-up

• Soft, wide ear cushions provide comfort and low-pressure fit

• Replaceable Hygiene Kits extend product life

• Durable dual-moulded ABS construction for long-lasting performance

• Compatible with 3M™ E-A-Rfit™ Dual-Ear Validation System

• Suitable for airports, mining, marine, construction, and heavy industry

Specifications:

• Model: H540A

• Attenuation Rating (SLC₈₀): 33 dB (Class 5)

• Style: Over-the-head

• Material: Dual-moulded ABS

• Colour: Black/Red

• Series: Optime™ III

• Compliance: CSA Class 5 / AS/NZS 1270:2002

Maximum protection, premium comfort, and proven reliability — the 3M™ PELTOR™ Optime™ III is built for the loudest workplaces on Earth.