Shell-type safety earplug, consisting of two plastic shells, coated with foam cushions on their sides. It has foams on the inside of the shells. It also has a movable fastening rod, to keep the shells firm and attached to the safety helmet.
Tested in accordance with ANSI S12.6:2008, Method B – Real Ear Method, Placement by the Listener – by the Personal Protective Equipment Laboratory (LAEPI), and the Subject Fit Noise Reduction Levels (NRRsf) were obtained.
