3M™ Foam Earplugs 1100 BOX CSA Class A while the ergonomic

while the ergonomic

Acrylic fleece inside layer insulates while drawing perspiration from your feet

100% polyester birdseye knit

For complete

3M™ Foam Earplugs 1100 BOX CSA Class A while the ergonomicNoise Reduction Rating (NRR) of 29 dB, CSA Class AL Test compatible with 3M E A Rfit Validation System Compatible with the 3M E A Rfit Validation System Dispenser packaging option available for uncorded earplugs CSA Class AL One size fits most *U. S. EPA specifies the NRR as the measure of hearing protector noise reduction. However, 3M makes no warranties as to the suitability of the NRR for this purpose. 3M strongly recommends personal fit testing of