Product Description

New i Well at Walgreens Soft Comfortable Design to Use Anytime Helps Block Noise Snoring Disposable 33 dB Noise Reduction Rating Contains 10 Pairs Attenuation Data Tested according to ANSI S.3.19-1974 table border=1 cellspacing=1 cellpadding=1 style=width:500px Frequency Hz 125 250 500 1000 2000 3150 4000 6300 8000 tr Mean Attenuation, dB 40.9 43.0 44.8 38.9 37.2 47.4 48.5 47.7 47.8 tr Standard Deviation, dB 3.5 3.9 3.8 2.8 2.7 4.5 3.1 4.4 3.9 tr tbody table NRR: 33 dB The level of noise entering a persons ear, when 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 33decibels. 3. The level of noise entering the ear is approximately equal to 59dBA. The range of noise reduction rat