3M™ E-A-R™ Classic Plus Metal Detectable Earplugs, 311-4101, yellow, corded

Constructed from slow-recovery foam, the disposable earplug conforms to the shape of the ear canal for premium hearing protection.

3M™ E-A-R™ Classic Earplugs are an economical, reliable choice in hearing protection and conservation. The slow recovery foam used to create these ear plugs, provides a flame resistant, moisture resistant and sound resistant barrier for the ear canal, along with a deeper fit in the ear canal making the 3M™ E-A-R™ Classic Earplug one of the most widely used foam earplugs today.

• Designed with detectable metal components for food processing and other industries where it is critical to keep earplugs from contaminating products and processes
• Noise Reduction Rating (NRR)*: 33 dB. CSA Class AL
• Test compatible with 3M™ E-A-Rfit Validation System
• Slightly longer than regular size 3M™ E-A-R™ Classic™ Earplugs for higher noise reduction when fit deeply in the earcanal

Suggested Applications

• Sweat and moisture-resistant for use in humid environments
• Designed with detectable metal components for food processing and other industries where it is critical to keep earplugs from contaminating products and processes
• Stainless steel ball bearing in the earplug helps in metal detection systems. Also contains metal particles in cord for easy detection.