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• <br /> • • <br /> Q uet <br /> • <br /> '41Z 4 c...ib. <br /> M m *nV1,71; r77. ,Dect6el� <br /> 1 Ettposuper «� , c xxs �L n " } }fa F�carn `e rL ^�r� d i w ••' <br /> r rei l evel <br /> day +OS <br /> (1Al r c .;. :� =pi �:'- <br /> No Sound 0 Threshold of hearing...essentially no sound <br /> 10 Breathing <br /> 15 A soft whisper in someone's ear. <br /> Very Quiet 20 Whisper, rustling leaves • <br /> 25 Recording Studio <br /> 30 Quiet rural area, Very quiet library. <br /> 40 Very Quiet Residence <br /> 45 Typical neighborhood. <br /> Quiet 50 Quiet suburb, conversation at home, Private office <br /> 60 Normal conversation (3-5 feet), sewing machine, typewriter. <br /> Annoying 70 Freeway Traffic at 50 feet, vacuum cleaner <br /> 75 Typical car interior on highway <br /> Loud 80 Garbage disposal, dishwasher, average factory, Telephone dial tone. <br /> Noisy office <br /> 16 hours 85 City Traffic (inside car). <br /> 8 Hours 90 Power drill, shop tools, Busy urban street, diesel truck, food blender <br /> 6 Hours 92 Clarinet, Oboe et 10 feet <br /> 4 Hours 95 Subway train at 200 feet <br /> 3 Hours 97 French Hom at 10 feet <br /> 2 Hours Very Loud 100 Jet takeoff 1000 feet, Outboard motor, farm tractor, garbage truck, Very <br /> heavy Traffic <br /> 1.5 Hours 102 Motorcycle • <br /> 1 Hour 105 Power mower <br /> 108 Home Theater (loud peaks) <br /> 0.5 Hours 110 Chalnsaw, pneumatic drill, typical rock concert, Steel Mill, riveting, auto <br /> hom at 3 feet • <br /> 0.25 Hours 115 Jackhammer <br /> 0 Hours Pain ' 120 Loud thdle <br /> threshold unercP. typical live rock music <br /> Hearing damage <br /> occurring 125 Pneumatic riveter at 4 feet <br /> Ear drum <br /> distortion 130 Jet takeoff (300 feet), Noise level during a stock car race. <br /> Permanent 132 Very loud rock concert, 50 feet in front of s <br /> hearing damage peckers <br /> 140 Gun muzzle blast <br /> 140 Prop aircraft on takeoff, gun muzzle blast, aircraft carrier deck, jet engine <br /> at 100 feet <br /> Eardrum rupture 150 Jet takeoff 75 feet <br /> 155 Shot from a handgun (.38 or .44) at 1 foot <br /> 160 Jet aircraft on Takeoff at 30 feet <br /> Immediate death 180 Jet engine at 1 foot <br /> of tissue g <br /> 194 Loudest sound in air, air particle distortion (sonic boom) <br /> 02003 Quiet Solution, Inc. <br />