Question: what are noise exposure limits?
Answer: OSHA sets legal limits on noise exposure in the workplace. These limits are based on a worker's time weighted average over an 8 hour day. With noise, OSHA's permissible exposure limit (PEL) is 90 dBA for all workers for an 8 hour day. ... NIOSH would recommend limiting the 8 hour exposure to less than 85 dBA.