The 3M™ E-A-R™ UltraFit™ Earplugs 340-4004 offer reliable and reusable hearing protection with a triple-flange design that adapts to various ear canal shapes for a secure, noise-blocking seal. Made from soft elastomeric polymer, these earplugs are washable and reusable, reducing waste and long-term costs.
Featuring a vinyl cord for easy handling and retention, the UltraFit™ earplugs are ideal for industrial environments such as manufacturing, construction, oil & gas, pharmaceuticals, and marine operations. The stem insertion design allows users to insert earplugs without touching the tips, maintaining hygiene and fit integrity.
With a Noise Reduction Rating (NRR) of 25 dB, they are compatible with the 3M™ E-A-Rfit™ Dual-Ear Validation System, enabling fit testing for personalized protection. Packaged in poly bags, each case contains 400 corded pairs, making it suitable for large-scale deployment.










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