Guangzhou Junyue Foam Earplug Co.,Ltd.
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Disposable And Reusable Ear Plugs Testing The Ear Canals Fit Or Not
Aug 29, 2018

Testing the Fit:

The degree of noise reduction that the ear plugs provide depends upon 

proper insertion. Improper fit will reduce their effectiveness. The 

plugs noise reduction can be tested subjectively by pressing firmly 

cupped hands over the ears while listening to a steady noise. If the 

plugs are properly inserted, the noise levels should seem nearly the 

same whether or not the ears are covered.

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