-50prs/box
-Carrying case keeps earplugs clean and accessible for re-use.
-Proprietary, premolded, triple-flange earplug design inserts easily.
-Soft polymer is washable and reusable
-Noise Reduction Rating (NRR)*: 25 dB. CSA Class AL.
-Test compatible with 3M™ E-A-Rfit™ Validation System
NRR