KASCO SHOTCRETE HELMET

protective helmets, namely, protective helmets featuring a battery-operated air-filtration system in the nature of a respirator for use in construction and mining; battery chargers for protective helmets featuring a battery-operated air-filtration system in the nature of a respirator for use in construction and mining; air-flow indicators for use with protective helmets featuring a battery-operated air filtration system in the nature of a respirator for use in construction and mining; air filters for protective helmets featuring a battery-operated air filtration system in the nature of a respirator for use in construction and mining; protective clothing, namely, pressurized suits, helmet liners, shoulder-length collars, and helmet sweat pads for use with protective helmets; face shields for protective helmets