3M™ E-A-R™ Classic™ Metal Detectable Earplugs Corded 311-4101 200 Pairs p/n 311-4101

3M™ E-A-R™ CLASSIC™ METAL DETECTABLE EARPLUGS CORDED 311-4101 200 PAIRS 3M E-A-R CLASSIC METAL DETECTABLE EARPLUGS WERE SPECIALLY DEVELOPED FOR FOOD PROCESSING AND OTHER INDUSTRIES WHERE IT IS CRITICAL TO KEEP EARPLUGS FROM CONTAMINATING PRODUCTS AND PROCESSES. RECOGNIZED BY MOST METAL-SENSING SYSTEMS THESE EARPLUGS FEATURE AN IMPLANTED STAINLESS STEEL BALL BEARING IN THE PLUG AND METAL PARTICLES IN THE CORD. POLY BAG KEEPS EACH PAIR OF EARPLUGS CLEAN BEFORE USE. THE 3M E-A-R CLASSIC PLUS METAL DETECTABLE CORDED EARPLUGS HEARING CONSERVATION FEATURE A STAINLESS STEEL BEAD INSIDE THE EARPLUG AND METAL POWDER IN THE CORD TO MAKE BOTH THE EAR PLUG AND CORD DETECTABLE FOR FOOD PROCESSING AND OTHER INDUSTRIES WHERE IT IS CRITICAL TO KEEP EARPLUGS FROM CONTAMINATING PRODUCTS AND PROCESSES. THESE EARPLUGS SEAL THE EAR CANAL WITH SOFT SLOW-RECOVERY FOAM FOR EXCELLENT NOISE REDUCTION AND RELIABLE HEARING PROTECTION. THESE EARPLUGS ARE COMMONLY USED IN THE FOOD AND BEVERAGE MANUFACTURING AGRICULTURE CHEMICAL PRODUCTION HEALTHCARE OIL AND GAS AND PHARMACEUTICALS INDUSTRIES. THESE EARPLUGS HAVE A NOISE REDUCTION RATING (NRR) OF 33 DB CSA CLASS AL. HOWEVER RESEARCH SUGGESTS THAT MANY USERS WILL RECEIVE LESS NOISE REDUCTION THAN INDICATED BY THE NRR DUE TO VARIATION IN EARPLUG FIT EARPLUG FITTING SKILL AND MOTIVATION OF THE USER. IT IS RECOMMENDED THAT THE NRR BE REDUCED BY 50 TO BETTER ESTIMATE TYPICAL WORKPLACE PROTECTION. THESE EARPLUGS ARE TEST COMPATIBLE WITH THE 3M E-A-RFIT VALIDATION SYSTEM.