Batteries; battery chargers; voice amplifiers and transmitters; gas, vapors, chemical warfare or biological agents detectors and parts thereof; gas, vapors, chemical warfare or biological agents measurers and parts thereof; gas, vapors, chemical warfare or biological agents analyzers and parts thereof; gas, vapors, chemical warfare or biological agents monitors and parts thereof; gas, vapors, chemical warfare or biological agents recorders and parts thereof; gas calibrators; fire and danger alarms; thermal imaging cameras; respiratory protective apparatus, namely, escape respirators, air-purifying respirators, air-line respirators and self-contained breathing apparatus and parts thereof; eye and face protective apparatus, namely, masks, safety goggles, safety glasses and face shields; hearing protection apparatus, namely, ear plugs, ear bands, ear muffs and headsets, not for medical use; protective wearing apparel for miners, industrial workers, firefighters and those engaged in hazardous pursuits, namely, headgear, hats, caps, winter headwear, and hoods; [ tactical and concealable body armor, and modular pouches and pockets thereof; ] ballistic helmets; personal safety and fall protection equipment other than for sports, namely, full body harnesses, support belts for workers, lanyards, restraint lanyards, shock absorbing lanyards, self-retracting lanyards, lanyard shock absorbers and anchorage connectors; rope grabs; ladder climbing safety equipment, namely, ladder fall arresters; confined space entry and/or retrieval equipment, namely, personnel and material handling hoists, self retracting lanyards with retrieval capability, portable tripods and davits; horizontal lifelines; and vertical lifelines and descent devices that lower people at a controlled rate of speed