3M EARPLUG ULTRA FIT

Introduction to 3M E‑A‑R UltraFit Earplugs (340‑4004)

The 3M EARPLUG ULTRA FIT 340‑4004 earplugs are professional-grade hearing protection, featuring a corded triple‑flange design that contours to a wide range of ear canals. Specifically engineered for industrial and occupational environments, these reusable plugs offer a Noise Reduction Rating (NRR) of 25 dB, making them suitable for moderate-to-high noise applications in manufacturing, construction, automotive, and more

Key Features & Benefits

• • • Triple‑Flange Premium Seal: Patented multi-flange design delivers a snug and adaptive fit, enhancing comfort and consistent hearing protection across users
    • Stem‑Insert Design: The extended stem enables hygienic handling—no need to touch ear tips—keeping the soft polymer tip clean and reducing contamination risk
    • Washable & Reusable:
      Crafted from washable elastomeric polymer, these earplugs can be rinsed and reused, reducing cost and environmental impact compared to one-time disposables
    • Corded Convenience:
      Built-in vinyl cord provides easy storage—hang earplugs around the neck when not in use to reduce loss on-site
    • High Attenuation Efficiency: NRR of 25 dB grants effective hearing protection in noisy settings. Compliant with CSA Class AL and other standards. (Note: typical performance might vary; users should follow attenuation adjustment guidelines)
    • FIT Validation Compatible: Compatible with 3M’s E-A-Rfit Dual-Ear Validation System for individual fit testing, ensuring reliable protection tailored to each worker

Applications & Use Cases

These earplugs suit a variety of noisy environments, such as:

• • • Heavy manufacturing, construction, automotive plants, woodworking shops, chemical or pharmaceutical facilities, and more
    • Ideal for employees requiring reusable solutions with hygienic, hands-free handling
    • The cord prevents accidental loss and maintains accessibility during operations.

Specifications

• • • Model: 340‑4004 (corded)
    • Packaging: 400 pairs per polybag bulk case
    • Material: Thermoplastic elastomer (washable & durable)
    • NRR / Standards: 25 dB (EPA), CSA Class AL, AS/NZS 1270 class 3 compliant

Why Choose 3M EARPLUG ULTRA FIT 340‑4004?

• • Consistent Comfort & Seal: Adaptive triple‑flange fits a wide user base comfortably
  • Enhanced Hygiene: Stem makes handling easy without touching insertable tips
  • Built to Last: Washable design offers cost-efficient reuse
  • Compliance-Ready: Meets or exceeds OSHA, CSA, and Australian/New Zealand standards
  • Fit-Testing Assurance: Compatible with validation systems to ensure real-world protection

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