Ezy Dose Ear Plugs, Seal-Rite, Silicone 6 ea

21 NRR - Noise reduction rating. Great for swimming. Ezy Dose Kids offers convenient solutions that help you provide care and comfort to your family. Ezy Dose Kids silicone ear plugs are great for children to use for swimming or bathing to help prevent swimmers ear, as well as protect ears with tubes. They are sized to cover tiny ear canals and are reusable. Information Required By EPA: The level of noise entering a person's ear, when a hearing protector is worn as directed, is closely approximated by the difference between the A-weighted environmental noise level and the NRR. Example: (1) The environmental noise level as measured at the ear is 92 dBA. (2) The NRR is 21 decibels (dB). (3) The level of noise entering the ear is approximately equal to [92 dB(A) - 21] 71 dB(A). Noise Reduction Rating: 21 decibels (when used as directed). The range of noise reduction ratings for existing hearing protectors is approximately 0 to 30 (higher numbers denote greater effectiveness). Federal law prohibits removal of the label prior to purchase. Label required by US EPA regulation 40 CFR part 211 subpart B.