This cap-mounted helmet earmuff delivers reliable hearing protection with a 25 dB Noise Reduction Rating (NRR), designed specifically for use with MSA V‑Gard® slotted full‑brim hard hats. Ideal for industrial environments—such as construction, manufacturing, oil & gas, utilities, and processing—this solution enables workers to reduce noise exposure without compromising head protection or dielectric safety. Featuring adjustable spring arms and soft ear cushions, the unit supports long-wear comfort, even when paired with safety glasses or respiratory gear.

Key Features

Certified noise attenuation – Reduces noise by 25 dB, meeting ANSI S3.19‑1974 and CSA Class A standards for high-level hearing protection.
Low-pressure spring design – Ensures a secure but gentle fit for fatigue-free wear across long shifts.
Three-position pivot – Adjustable ear cup rotation allows quick deployment or stowage—even while wearing gloves.
Generous internal space – Spacious cup interior comfortably accommodates glasses and adds acoustic effectiveness.
User-friendly adjustments – Textured grips and height-adjustable cups enhance customization in harsh or gloved conditions.
Dielectric integrity maintained – Retains Class E rating when paired with V‑Gard full‑brim helmets, preserving electrical safety.

Intended Use

This earmuff is purpose-built for professionals operating in high-noise settings where helmet use is mandatory:

Assembly line personnel, machine operators, and factory workers
Construction crews utilizing power tools or working in noisy zones
Oil & gas field personnel, utility technicians, and maintenance staff
Workers in confined spaces, welding/sanding operations, and infrastructure projects
Safety officials overseeing PPE compliance in industrial worksites

Its cap-mounted configuration ensures compatibility with full-brim helmets and integration with other protective equipment—making it an essential addition to site safety protocols.

Product Specifications

Material: Durable dielectric plastic housing
Dimensions: 7″ H × 6″ W × 3.7″ L (178 × 152 × 94 mm)
Weight: 0.77 lb (350 g)
Color: Gray/Black
Mounting: Cap-mounted—designed for MSA V‑Gard slotted full‑brim helmets
NRR: 25 dB
UPC: 641817039793


Certifications & Standards

ANSI S3.19‑1974 – Verified standards for passive hearing protection
CSA Class A – High protection threshold under Canadian standards
Class E Dielectric – Maintained when mounted on V‑Gard full‑brim helmets