MSA 10087439 left/RIGHT™ Passive Cap-Mounted Earmuff – Low Attenuation Hearing Protection - White

The MSA 10087439 left/RIGHT™ Passive Cap-Mounted Earmuff provides reliable hearing protection in workplaces with moderate noise exposure where communication and environmental awareness remain essential. Featuring a Noise Reduction Rating (NRR) of 21 dBA, this low-attenuation earmuff helps reduce harmful noise levels without causing overprotection.

Engineered with anatomically shaped left and right ear cups, the earmuff follows the natural contours of the head and ears to provide exceptional comfort and a secure acoustic seal. Independent multi-axis adjustment allows users to customize the fit based on individual head shape and jawline.

Its dielectric, non-conductive construction enhances safety in electrical environments, while durable ABS ear cups and soft PU foam cushions ensure long-lasting comfort and performance. Designed exclusively for MSA slotted hard hats, this helmet-mounted hearing protector is ideal for construction, manufacturing, utilities, maintenance, and industrial applications.

Key Benefits

1. Low attenuation design preserves workplace communication and situational awareness.
2. NRR 21 dBA protection helps reduce harmful noise exposure.
3. Anatomically designed left and right ear cups enhance comfort and fit.
4. Lightweight construction minimizes neck strain during long shifts.
5. Dielectric design provides added safety in electrical environments.
6. Multi-axis adjustment allows a customized fit for maximum comfort.
7. Durable industrial-grade materials ensure long service life.

Technical Specifications

• Brand: MSA Safety
• Model: 10087439
• Series: left/RIGHT™
• Product Type: Passive Cap-Mounted Earmuff
• Attenuation Level: Low
• Noise Reduction Rating (NRR): 21 dBA
• Color: White Ear Cups with Black Mounting Arms
• Construction: Dielectric (Non-Conductive)
• Ear Cup Material: ABS (Acrylonitrile Butadiene Styrene)
• Cushion Material: Polyurethane Foam with PVC Covering
• Spring Mechanism: Thermoplastic Elastomer (TPE) and Polypropylene
• Mounting Type: Helmet Mounted
• Compatibility: MSA Slotted Hard Hats
• Length: 200 mm (7.874 in)
• Width: 110 mm (4.331 in)
• Height: 160 mm (6.299 in)
• Weight: 0.100 kg (0.220 lb)
• UNSPSC Code: 46181902
• UPC: 7392749003378