Flents Protechs Quiet Please Sleep Ear Plugs, NRR 29 (50 Pair)

Easy Insertion, Forms To Ear Canal Shape Noise Reduction Rating NRR 29 Information required by EPA: The level of noise entering a person's ear, when a hearing protector i sworn as directed, is closely approximated by the difference between the A-weighted environmental noise level and the NRR. Example: The environmental noise level as measured at the ear is92 dBA. The NRR is 29 decibels (dB). The level of noise entering the ear is approximately equal to[92 dB(A) - 29] 63 dB(A). Noise Reduction Rating 29 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).

Easy Insertion, Forms To Ear Canal Shape Noise Reduction Rating NRR 29 The environmental noise level as measured at the ear is92 dBA. Information required by EPA: The level of noise entering a person's ear, when a hearing protector i sworn as directed, is closely approximated by the difference between the A-weighted environmental noise level and the NRR Example:The environmental noise level as measured at the ear is92 dBA