Engineering Controls to Reduce Noise Exposure
Engineering controls eliminate, or engineer out the noise, by using noise control solutions: sound absorbers, sound blocking, composite sound absorbers/blocking, and ventilation silencing.
When is Noise Control Required?
OSHA's Noise Standard (29 CFR 1910.95) requires employers to have a hearing conservation program in place if workers are exposed to a time-weighted average (TWA) noise level of 85 decibels (dBA) or higher over an 8-hour work shift. Noise control is accomplished through three different modes: sound absorption, sound blocking, and silencing.
|90-95||hearing loss from sustained exposure|
|125||start to experience pain|
|140||quickly causes irreversible hearing damage|