3M™ No-Touch Foam Plugs, Purple, Corded - 400 Pairs Per Case

3M™ No-Touch Foam Plugs, Purple, Corded - 400 Pairs Per Case 3M™ No-Touch Foam Plugs create a hygienic, noise-reducing seal in the ear canal with soft foam, a smooth tapered shape, and paddle stems. Features: Foam tips stay clean, even when your hands are dirty. Tapered shape fits the ear canal comfortably. Noise Reduction Rating (NRR)*: 29 dB. CSA Class AL. Compatible with the 3M™ E-A-Rfit™ Validation System. Noise reduction rating (NRR)*: 29 dB. Available with or without cords to suit user preference. *U.S. EPA specifies the NRR as the measure of hearing protector noise reduction. However, 3M makes no warranties as to the suitability of the NRR for this purpose. 3M strongly recommends personal fit testing of hearing protectors. Research suggests that users may receive less noise reduction than indicated by the attenuation label value(s) on the packaging due to variation in fit, fitting skill, and motivation of the user. Refer to applicable regulations or guidance on how to adjust attenuation label values. It is recommended that the NRR be reduced by 50% to better estimate typical protection.