Noise exposure over 85dB can cause permanent hearing loss. Harmful noises can have life long hearing loss affects, so preserving your hearing with adequate protection from the surrounding noise is Paramount. DECIBELS (dB) 135 Painful noise, high likelihood of hearing loss. 120 Hearing protection 112dB < 1 Minute needed. Construction 110+ dB 109dB < 2 Minutes 105 Uncomfortable nois ,e hearing damage 106dB likely with prolonged < 4 Minutes exposure. 90 Hearing protection recommended. 103dB 7.5 Minutes Manufacturing 110+ dB 75 100dB 15 Minutes 97dB 30 Minutes 60 Assembly Line Safe zone. 94dB 1 Hour 90+ dB Noise unlikely to 45 cause long term hearing loss. 91dB 2 Hours 30 88dB 4 Hours Loud Office 85+ dB 15 85dB 8 Hours