These earplugs are test compatible with the 3M™ E-A-Rfit Validation System.
- Noise Reduction Rating (NRR) of 29 dB, CSA Class AL
- Test compatible with 3M™ E-A-Rfit Validation System
- Soft polyurethane foam is hypoallergenic, flame-resistant and moisture-resistant
- Smooth, dirt-resistant surface helps maintain hygiene
- Tapered design fits comfortably in ear canal
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