Quieter than a Crying Baby: the ECHO PB-250LN Blower

shared by lizmcmedia on Nov 26, 2013 in Science

Quieter than a Crying Baby: the ECHO PB-250LN Blower

shared by lizmcmedia on Nov 26, 2013 in Science

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Sounds starting at 85 decibels can cause hearing loss, depending on the power of the sound and the length of exposure to it. Can you believe a baby crying is actually more harmful to the ear than a lo...
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