Acoustical design reduces noise levels across all frequencies without distortion or muffling of sounds
Proprietary, premolded, triple-flange design inserts easily
Reusable earplug offers cost savings over a long term
One size fits most ears to reduce stocking multiple sizes at worksites
Noise Reduction Rating (NRR) 12 dB CSA Class C

Technical Details

Product Details

Package Dimensions
Width : 6.6 inch
Height : 5.1 inch
Length : 6.9 inch

Shipping Weight: 5.6 ounce (View shipping rates and policies)

ASIN : B007K9DJ7A

Product Description

3M E-A-R Hi Fi earplugs feature an acoustical design that reduces noise level across all frequencies without distortion or muffling. Proprietary, premolded, triple-flange earplug design inserts easily. Noise Reduction Rating (NRR): 12 dB CSA Class AL. The NRR may overestimate the hearing protection provided during typical use. 3M recommends reducing the NRR by 50 percent for estimating the amount of noise reduction provided. 3M is Leading the Advancement of Hearing Conservation.