3M 90565-4DC-PS Pro Earmuff Nrr 30 Db 4 Pack

Product Description

The 3M 90565-4DC-PS is a professional-grade passive earmuff designed to deliver NRR 30 dB hearing attenuation in moderate to high noise environments. Built around a patented twin cup design, it provides consistent acoustic seal and comfort during extended wear. A fully adjustable steel wire headband with padding accommodates a wide range of head sizes and reduces fatigue on long shifts. This earmuff is a standard PPE item installed and worn by HVAC technicians, electricians, plumbers, and other trade professionals working near loud equipment, compressors, generators, or power tools.

The 90565-4DC-PS is suited for residential and commercial job sites where ambient noise levels require rated hearing protection. Typical applications include mechanical rooms, rooftop equipment service, generator operation, and any environment where OSHA-mandated hearing conservation applies. This package contains 4 earmuffs, making it practical for outfitting a crew or maintaining job site stock.

Key Features

• NRR 30 dB noise reduction rating for moderate to high noise environments
• Patented twin cup design for consistent acoustic seal and fit
• Fully adjustable steel wire headband with padding for extended wear comfort
• Passive protection — no batteries required, no electronic components to service
• Packaged as a set of 4 units for crew or shop use

Compatibility

Designed as a general-purpose passive earmuff for trade and industrial use wherever NRR 30 dB hearing protection is required by site or regulatory standards.

Installation Notes

Earmuffs require no installation tools. Fit is adjusted by extending or retracting the steel wire headband until the cups form a firm seal around both ears. Inspect the ear cup cushions before each use for cracks or compression set that could reduce the acoustic seal. Follow your employer's hearing conservation program and applicable OSHA 29 CFR 1910.95 requirements for proper use and replacement intervals.

Technical Specifications

• Noise Reduction Rating (NRR): 30 dB
• Headband Material: Steel wire with padding
• Package Quantity: 4 earmuffs
• Unit of Measure: EA
• Weight: 3.12 pounds (package)

Standard Information

• Brand: 3M
• Manufacturer Part Number: 90565-4DC-PS