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<br />EXAMPLES OF <br />DECIBEL LEVELS <br /> <br />Quiet Home 20 to 40 dbl <br />Whisper in Library 30 dbl <br />Normal Talking 40 to 60 dbl <br />Sewing Machine 60 dbl <br />Ringing Telephone 65 dbl <br />Noisy Restaurant 70 dbl <br />Car Engine Ave. Sound at 50 feet 70 dbl <br />Vacuum cleaner 75 dbl <br />Diesel Truck Average Sound at 50 feet 80 dbl <br />Train - Average at 50 feet 85 db I <br />Shouting 90 dbl <br />Lawn Mower at50feet 90 dbl <br />Chainsaw 100 dbl <br />Snowmobile 100 dbl <br />Jet at 1,000 height 103 dbl <br />Loud music (rock concert) 100-120 dbl <br />Jack hammers 100-120 dbl <br />Jet at takeoff (close range) 120+ dbl <br /> <br />Page 2 of3 <br />