Designed for integration with most hard hats, the 3M™ PELTOR™ Optime™ 101 Earmuffs – H7P3E offer reliable hearing protection in loud industrial environments. These cap-mount earmuffs provide a Noise Reduction Rating (NRR) of 24 dB and are built for consistent performance in noise levels up to 101 dBA. The low-profile design ensures a comfortable yet secure fit under helmets, safety glasses, and other PPE, making them ideal for extended use. With replaceable cushions and foam liners, these earmuffs are also optimized for hygiene and long-term usability in heavy-duty applications such as grinding, welding, and demolition work.

Key Features

Noise Reduction Rating (NRR): Offers effective hearing protection against moderate to high noise levels.

CSA Class A Certified : Complies with Canadian standards for Class A hearing protection.

Cap-Mounted Compatibility : Easily attaches to most industrial hard hats for seamless integration into head protection systems.

Low-Pressure Fit : Provides consistent earcup force for a snug, yet comfortable seal throughout the workday.

Replaceable Cushionsb : Compatible with the 3M™ PELTOR™ Hygiene Kit HY7 for extended product life and cleanliness.

E-A-Rfit™ Validation Compatible : Fit can be tested and verified using the 3M™ E-A-Rfit™ Dual-Ear Validation System.

Durable ABS Construction : Built to withstand the rigors of industrial use while remaining lightweight and balanced.

Intended Use

This model is ideal for professionals in general manufacturing, metal fabrication, mining, military maintenance, oil & gas, pharmaceutical, and transportation industries. It is especially suited for tasks such as grinding, welding, sanding, machine operation, and demolition, where consistent noise levels demand effective yet comfortable hearing protection that fits well with hard hats and other PPE.

Product Specifications

Model Number: H7P3E
3M ID / SAP ID: 7000009668
Legacy SKU: XH001651245
Style: Cap-mount (hard hat attached)
Material: ABS plastic
Noise Reduction Rating (NRR): 24 dB
Replaceable Components: Yes (Hygiene Kit HY7)
Bluetooth/Communications: No
Dielectric: No
Moisture Resistant: No
Electrically Insulated: No
Product Type: Passive earmuff
Industry Applications: Automotive, mining, general manufacturing, military MRO, oil & gas, pharmaceutical, transportation

Certifications and Standards

CSA Class A – Compliant with Canadian standards for high-performance hearing protection
NRR 24 dB – Evaluated per ANSI standards