| Jackhammer 100 decibels |
| |
Protector Plus 95 decibels |
| Bulldozer 90 decibels |
| Busy street corner 80 decibels |
| Busy traffic 70 decibels |
| Busy office/restaurant 60 decibels |
| Quite restaurant inside 50 decibels |
| Quite residential area at night 40 decibels |
| Theater no talking 30 decibels |
| Human breathing 10 decibels |