3M™ Foam Earplugs 1100 BOX CSA Class A Acrylic fleece inside layer insulates

Acrylic fleece inside layer insulates while drawing perspiration from your feet

built for utilities

For higher-risk sites

Material: PVC

3M™ Foam Earplugs 1100 BOX CSA Class A Acrylic fleece inside layer insulatesNoise 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