O-TWO

Rescue masks for hazardous environments, namely - in hazardous underground locations, namely, mines, caves, wells; in indoor and outdoor fire-fighting environments; in toxic industrial environments; in chemical spill environments; and in toxic military environments; respiratory equipment other than for artificial respiration, namely masks, valves, pipes, regulators, flow meters, gauges

Breathing equipment for medical and hospital use, namely breathing masks, valves, hoses, pocket ventilators, demand valve resuscitators, preset and adjustable gas supply regulators, bag-valve mask resuscitators, oxygen powered ventilators, automatic timed cycled/volume resuscitators and automatic patient ventilators; respiratory equipment for artificial respiration, namely masks, valves, pipes, regulators, flow meters, gauges