3M E-A-R Classic Corded Earplugs set the standard in hearing protection as the world's first foam earplugs. Constructed from slow-recovery foam, these disposable earplugs are uniquely moisture-resistant. Slow-recovery foam helps ensure comfort and minimize pressure. Bright yellow color provides a quick visual compliance check. Dermatologically safe foam is non-irritating, nonflammable, and moisture-resistant. Standard size fits most people. NRR 29dB ANSI S3.19-1974. CSA Class AL. The NRR may overestimate the hearing protection provided during typical use. 3M recommends reducing the NRR by 50% for estimating the amount of noise reduction provided.

• 3M E-A-R™ Classic Earplugs 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
• Noise reduction rating (NRR) 29 dB CSA Class AL
• Flame resistant - important for potential arc flash situations and for storage considerations
• Cord allows earplugs to be stored conveniently around the neck in between uses