110 Decibels:  Regular exposure of more than 1 minute risks permanent hearing loss.

100 Decibels:  No more than 15 minutes of unprotected exposure recommended.

90 Decibels:  Prolonged exposure to any noise above 90 dB can cause gradual hearing loss.

Are You Hurting Your Hearing?

     140 dB:  Rock Concernts, Firecrackers
     120 dB:  Boom Cars, Snowmobiles
     110 dB:  Chainsaw
     100 dB:  Wood Shop
       90 dB:  Lawn Mower, Motorcycle
       80 dB:  City Traffic
       60 dB:  Normal Conversation
       40 dB:  Refrigerator (humming)
       20 dB:  Whispered Voice
         0 dB:  Threshold of Normal Hearing

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