Specifications:

• Manufacturer: 3M
• Brand: E-A-R UltraFit
• Model Number: 340-4004
• Product Type: Reusable Corded Earplugs
• Material: Elastomeric Polymer
• Color: Yellow
• Noise Reduction Rating (NRR): 25 dB
• Design: Triple-Flange Pre-Molded
• Cord Type: Detachable Cord
• Fit Type: One Size Fits Most
• Reusable: Yes
• Metal Detectable: No
• Compliance: ANSI S3.19-1974 Tested
• Packaging: Box of 200 Pairs

Ideal Industries:

• Construction
• Manufacturing
• Automotive
• Industrial Maintenance
• Warehousing and Logistics
• Oil and Gas
• Utilities
• General Industry

Ideal Applications:

• General hearing protection in moderate to high noise environments
• Manufacturing and fabrication operations
• Equipment operation and maintenance work
• Construction site noise protection
• Warehouse and distribution center operations
• Maintenance and facility management tasks
• Automotive repair and mechanical service work
• Short-term and extended wear hearing protection

3M E-A-R UltraFit 340-4004 Elastomeric Polymer Corded Earplugs are designed to deliver reliable, reusable hearing protection for professionals working in noisy industrial environments where consistent protection and comfort are essential. Built with durable elastomeric polymer and a proven triple-flange design, these corded earplugs provide a secure seal inside the ear canal while remaining comfortable for extended shifts. With a Noise Reduction Rating (NRR) of 25 dB, they help reduce exposure to hazardous workplace noise generated by power tools, heavy machinery, manufacturing equipment, and construction operations. Many safety managers and workers ask whether reusable earplugs can offer dependable protection compared to disposable foam options; the UltraFit design answers that need by providing consistent fit and long-term durability while minimizing waste. The detachable cord helps prevent loss and keeps the earplugs readily accessible when moving between noisy and quiet areas, making them practical for warehouses, production floors, and maintenance tasks. Another common question from buyers is whether one-size earplugs will fit most workers comfortably. The pre-molded triple-flange shape is engineered to adapt to a wide range of ear canal sizes, helping ensure a reliable acoustic seal without the need for rolling or shaping like traditional foam plugs. Workers also benefit from the smooth elastomeric material, which can be cleaned and reused, helping reduce ongoing PPE costs while maintaining workplace hygiene standards. For companies focused on OSHA-aligned hearing conservation programs, these reusable corded earplugs provide an efficient balance of protection, comfort, and operational convenience. Enviro Safety Products serves as an experienced and trusted supplier of certified PPE, helping safety professionals source dependable hearing protection solutions like the 3M E-A-R UltraFit corded earplugs to support compliance, worker safety, and productivity across demanding job sites.

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