3M E-A-R Express 311-1115 corded earplugs - NRR 25 (100 Pairs) Kidde For non-wired rooms

For non-wired rooms

Passive design offers no sound amplification or situational-awareness restoration

The 3M 7500 Series uses the standard 3M bayonet connection

while the 2291 has no odor media at all

Choose the standard 3M 2091 if cost is the priority and comfort is secondary

3M E-A-R Express 311-1115 corded earplugs - NRR 25 (100 Pairs) Kidde For non-wired roomsEDITORIAL REVIEW: 4. 5 5 WC Safety Review 3M E A R Express 311 1115 Corded Earplugs NRR 25 The 3M E A R Express 311 1115 corded earplugs covered on this page is reviewed here against its published specification and the standard that governs its category, not against a marketing claim. It is also listed as NRR 25 corded earplugs, 3M pod earplugs, no roll foam earplugs. Editorial assessment by Steven Eaton, WC Safety editor, based on published 3M