|
1
Level of Safety |
1
Decibels (Approximately) |
1
Type of noise |
|---|---|---|
|
1
Danger: Permanent hearing loss may occur |
1
140 120 110 100 |
1
Firecrackers; rock concert Snowmobiles Chain saw Wood shop |
|
1
Warning: Gradual hearing loss may occur over time |
1
90 |
1
Lawnmower; motorcycle |
|
1
Safe |
1
80 60 40 20 |
1
Traffic noise Normal conversations Refrigerator humming Whispering |