These are the legal noise levels based on land use category, from an OH&S safety perspective continuous noise levels 75 to 85dB can cause potential damage to ones hearing

day – 52dB
night – 45dB

Light Industry
day – 57dB
night – 50dB

day – 62dB
night – 55dB

General Industry
day – 65dB
night – 60dB

EPA General Noise Level Fact Sheet

NOT SURE of any noise levels then download The Silencer sound meter App which is set at legal limits and will let you know if your levels are OK or OVER, then simply email The Silencer and find products to solve the problem.