持久的85分貝遭遇或者瞬間120-130分貝的噪音會照成聽力傷害。下面是原文自己看吧。The Occupational Safety and Health Administration (OSHA) and the National Institute for Occupational Safety and Health (NIOSH) set guidelines for sound exposure. Sounds above 85 dB over prolonged periods or short bursts exceeding 120-140 dB can cause hearing damage. 消息來源: OSHA Noise and Hearing Protection Standards.