3M™ E-A-R™ Classic™ Ear plugs set the standard in hearing protection as the world’s first foam earplugs Slow recovery, low pressure foam conforms to the shape of the ear canal for enhanced comfort and wearability. Moisture-resistant—helps maintain a consistent expansion time, even in humid environments. Flame resistant—important for potential arc flash situations and for storage considerations. The plugs are connected via highly visible Blue PVC cord. NNR = 30






