Hearos Ultimate Softness Series Ear Plugs 28 pairs - (Pack of 2)

Pack of 2 for the UPC: 756063052257 High Protection NRR 32Noise Reduction Rating 32 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.Tested according to ANSI Specs S3.19-1974 The level of noise entering a person's ear, when hearing protector is worn as directed, is closely approximated by the difference between the A-weighted environmental noise level and the NRR.