Flents Protechs, Work Ear Plugs, 8 Pair With Case

Noise Reduction Rating - 33 DecibelsFoam Ear PlugsThe Highest Independently Tested NRRTapered for an Easy, Snug Comfortable Seal.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 33 decibels (dB). (3) The level of noise entering the ear is approximately equal to [92 dB(A) - 33] 59 db.The range of noise reduction ratings for existing hearing protectors is approximately 0 to 30 (higher numbers denote greater effectiveness).Noise reduction rating: 33 Decibels (when used as directed)