
Since hearing damage from loud noise is often undetectable until it is too late, this manufacturer and the Electronic Industries Association's Consumer Electronic Group recommend you avoid prolonged exposure to excessive noise. This list of sound levels is included for your protection. 5 Decibel Level Example 30 Quiet library, soft whispers 40 Living room, refrigerators, bedroom away from traffic 50 Light traffic, normal conversation, quiet office 60 Air conditioner at 20 feet, sewing mac