3M™, 7000148541, Earplugs, Corded, Series: Skull Screws™, Corded Design, 30 dB Noise Reduction, Push-to-Fit Shape, Universal Size, Silver Plug, Polyurethane Foam Plug, Vinyl Cord, Specifications Met: CSA Class AL, Disposable/Reusable: Disposable

The 3M™ E-A-R™ Skull Screws™ earplugs, grab attention with their edgy threaded metal look, but feel soft and comfortable to encourage hearing protection compliance among workers where hearing protection is required. There is no need to roll down the foam before inserting in ears. Simply pinch the insertion stem between fingers and push to fit, which keeps the tip going into the ears clean even if hands are somewhat soiled with dirt, oil, grease or some other contaminant. One size fits most ears. These earplugs have a noise reduction rating (NRR) of 30 dB, CSA class AL. However, research suggests that many users will receive less noise reduction than indicated by the NRR due to variation in earplug fit, earplug fitting skill and motivation of the user. It is recommended that the NRR be reduced by 50% to better estimate typical workplace protection. These earplugs are test compatible with the 3M™ E-A-Rfit™ validation System. Not only is noise present in our daily routines and recreational activities, but millions of Americans work in hazardous noise on a daily basis. Estimates from the National Institutes of health suggest that hearing loss afflicts 28 million Americans. About one third of those cases are at least partially attributable to noise. Hearing loss due to noise is almost entirely preventable by judicious use of hearing protection.