These test earplugs are modified with a probe tube for use during earplug fit testing with the 3M™ E-A-Rfit™ Validation System
For use with 3M™ E-A-Rfit™ Validation System to measure HPE effectiveness
Should not be used as hearing protection
3M™ 1200 Series Probed Test Plugs are a modified version of the 3M earplugs you know and use, specially designed to be used with the 3M™ E-A-Rfit™ Dual-Ear Validation System.