Patented Hear-Through™ design allow workers to hear conversations, signals, or other critical sounds clearly, while protecting against damaging impulse noise from an arc flash.
- Insert the yellow end and it allows clear hearing
- Arc blast is instantly suppressed by a calibrated filter, reducing it to a safer level
- Filter reacts instantaneously to reduce or eliminate the risk of hearing damage or concussive disorientation
- Insert red end for steady-state 22dB protection from high-noise levels (heavy equipment, etc.)
- Comfortable triple-flange tips are based on the popular E-A-R(R) UltraFit(R) design
- Fast and easy, no-roll insertion
- Washable and reusable plugs include a plastic carrying case with dielectric chain
- Red end NRR 22dB; Yellow end NRR 0dB (level dependent); ANSI S3.19-1974; CSA Class AL