Common Sounds dB value
Threshold Of Hearing. 0
Whisper. 13
Quiet Conversation. 20
Private Office. 30
Quiet Radio. 40
Average Business Office. 50
Recommended Limit For Quiet Office Environment. 55
Normal Conversation. 60
Recommended Limit For Normal Office Environment. 70
Amplified Speech, Road Traffic, Loud Music. 80
Recommended Limit For Factories. 85
25 Piece Orchestra, Shouting Voice 1m. 90
Continuous Noise At This Level Is Dangerous To Hearing. 95
Low Flying Aircraft, Noisy Plant. 100
Hard Rock Band, Noisy Plant. 115
Jet Aircraft Taking Off 20m Distance. 120
Jack Hammer 1m Distance. 125
Threshold Of Pain 130