3M™ Optime™ 105 H10B Behind-the-Head Industrial Safety Earmuffs | Extreme Noise Reduction NRR 29dB
3M™ Optime™ 105 H10B behind-the-head industrial hearing protection earmuffs. Patented twin-cup design delivers superior noise attenuation across both low and high frequencies up to 105 dBA.
Quick Selection & Compliance Summary (TL;DR): 3M™ Optime™ 105 H10B is engineered for extreme noise environments up to 105 dBA (foundries, engine test cells, heavy stamping). Dual-cup shell minimizes structural resonances to achieve an NRR of 29dB. Neckband format preserves compatibility with headgear.
| Core Parameter | Specifications & Performance | Compliance Standards |
|---|---|---|
| Product Code | 3M™ Optime™ 105 H10B Neckband Earmuffs | 3M™ Optime™ High-Decibel Series |
| Attenuation Rating | NRR 29 dB / For noise exposures up to 105 dBA | Twin-cup patented internal acoustic chamber |
| Neckband Construction | Stainless steel spring-wire headband behind the neck | Maintains uniform clamping force without losing tension |
| Compliance & Standards | ANSI S3.19-1974 & CE EN 352-1 compliant | Mandatory equipment for high-decibel industrial zones |
Industrial Standards & FAQ:
Q: What makes the 'Twin-Cup' design superior?
A: The two-layer cup design separates high-frequency and low-frequency acoustic damping chambers, achieving balanced attenuation that single-cup earmuffs cannot match.
Q: Is it suitable for workers wearing safety glasses?
A: Yes. The liquid/foam-filled cushions seal comfortably over spectacle arms without acoustic leakage.
Key Features & Extreme Decibel Protection:
- Patented Twin-Cup® Technology: Dual-cup shell construction with acoustic foam separation effectively absorbs extreme high- and low-frequency resonances.
- Maximum Noise Reduction (NRR 29 dB / SNR 35 dB): Rated for severe noise exposure environments with noise levels approaching or exceeding 105 dB(A).
- Behind-the-Head (Neckband) Ergonomics: Worn conveniently behind the neck, offering flawless compatibility with safety helmets, welding shields, and bump caps.
- Ultra-Wide Liquid/Foam Composite Cushions: Distribute pressure evenly across the head, providing exceptional seal integrity and prolonged wear comfort.
- Resilient Stainless Steel Headband Wire: Retains consistent tension and clamping force over prolonged industrial usage without metal fatigue.
- Replaceable Hygiene Kits: Compatible with 3M™ HY10 hygiene replacement kits to maintain sanitary performance and acoustic rating.
Typical Applications:
Heavy stamping presses, metal forging, steel rolling mills, industrial turbine generator halls, high-pressure air compressors, shipyards, and high-risk hearing conservation zones.
Selection Guide (H10B vs. X3B):
• H10B (NRR 29dB): Chosen for extreme continuous noise exposures up to 105 dB(A) and heavy manufacturing plant floors.
• X3B (NRR 28dB): Chosen for moderate-to-high noise environments requiring a streamlined, modern lightweight profile.
• H10B (NRR 29dB): Chosen for extreme continuous noise exposures up to 105 dB(A) and heavy manufacturing plant floors.
• X3B (NRR 28dB): Chosen for moderate-to-high noise environments requiring a streamlined, modern lightweight profile.
Need Technical Guidance or Industrial Bulk Supply?
SOBLAR is Taiwan's trusted provider of industrial safety stations, personal protective equipment, and machinery lubricants. Please contact our technical sales team via our Inquiry Board or directly:
Tel: +886-4-2281-6078 | Email: service@soblar.com
