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3M™ Center for Hearing Conservation

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3M™ E-A-Rfit™ Dual-Ear Validation Systems User Support

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Hearing Conservation Resources

Hearing Protection Fit Testing: What, Why and How

When it comes to attenuation, why guess when you can know?

Read the full article (PDF, 590.36 KB)
3M™ E-A-Rfit™ Validation System Assists to Train and Maintain Proper Use of Hearing Protection Over Time

This study highlights the benefit of training workers on the correct use of hearing protectors and assists with hearing protector selection

Read this study (PDF, 380.80 KB)
OSHA Letter of Interpretation on Hearing Protection Fit Testing

This Regulatory Update explains some important points that employers need to know when they use hearing protection to reduce hazardous noise. Specifically addressed are the OSHA expectations concerning the attenuation and choices of hearing protector devices (HPDs).

Read the letter of interpretation (PDF, 320.29 KB)

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