McKesson earplugs deliver a Noise Reduction Rating (NRR) of 32 decibels, helping protect ears from loud noise. Keep McKesson’s uncorded earplugs on-hand to follow safe practices and help prevent hearing loss at work or on-the-go. McKesson’s earplugs are made of low-pressure, slow-release polyurethane foam and fit securely in the ear canal. These earplugs offer low-profile hearing protection that can be used comfortably while wearing helmets, hats, and hoods. Individually packaged by the pair, McKesson foam earplugs are convenient for work, travel, construction, concerts, sleeping, yard work, and other high-volume situations.