The above images extracted from : http://www.benjaminjaffe.net
dB(A) - the A weighted noise or sound measurement - is
- its adaption to how the human ear responses to sound - the human hearing, and
- the possibility to measure noise with "low cost" instruments
Maximum acceptable Equivalent Sound Level - Leq - at some locations:
The above sound level extracted from: https://www.engineeringtoolbox.com/decibel-dba-levels
Caution: Please be alert not to subject your hearing with a noise level of more than 85 dB(A) each day, doing so will increase the risk factor for hearing damage.
