Sound pressure level
How loud is it?
Sound pressure level indicates how loud it is in the room. Exposure to continual high sound pressure levels or to high sound peaks can, over time, damage an individual’s health.
Average sound pressure level is important for all environments – from factories to kindergartens. The European Union has defined maximum exposure levels at 85 dB(A), and in some countries, public events like concerts should not exceed 96 dB(A).
The sound pressure level in a room depends on the strength of the sound source, the room shape and the number and quality of sound absorbing surfaces.