Noise-induced hearing loss occurs gradually which is why ear protection in a workshop is so important. Here are some different options for ear protection.
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A sound level meter measures the loudness of a sound in decibels. You can get a simple sound meter to measure the loudness of tools in your shop. When Dr. Harkrider and host David Thiel measured the sound of a circular saw, the meter read 98 decibels. A cordless drill measured 80 decibels. A shop vacuum measured 84. Eighty decibels or less will not promote permanent hearing loss. You should wear hearing protection when using tools that measure over 80 decibels.
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