Maximum Sound Pressure Levels in Rooms
Maximum recommended sound pressure levels in rooms like kindergartens, auditoriums, libraries, cinemas and more.
Sound pressure level is the pressure of sound related to a fixed reference. The reference is the threshold of hearing 2 10-5 Pa, or in the logarithmic decibel scale the value 0 dB.
The table below can be used as a guide to maximum acceptable sound pressure levels in rooms with different types of activities.
|Activity and Type of Area||Noise Rating|
|Hospital, operating theater||25||30|
|Hospital, private room||20||25|
|School, lecture room||25||30|
|Studio, television with audience||25||30|
|Studio, television without audience||20||25|