Earplugs equipped with a probe tube for fit testing using the 3M E-A-Rfit Validation System. Cannot be used for hearing protection.

• These test earplugs are modified with a probe tube for use during earplug fit testing with the 3M E-A-Rfit Validation System
• 3M PSD products are for occupational use only
• The NRR may overestimate the hearing protection provided during typical use