Air contamination particle counters; air contamination condensation particle counters; sample air quality measurement apparatus, namely, particle counters

ENERGY RECOVERY VENTILATORS; Heat exchange equipment, namely, nanomaterial and polymer membranes; AIR CONDITIONING apparatus and installations; HEATING installations and heat pumps; AIR CONDITIONING MODULAR REFRIGERATION UNITS; AIR CONDITIONING SYSTEMS CONSISTING PRIMARILY OF CHILLERS, EVAPORATORS, HEAT EXCHANGERS, MOTOR AND COMPRESSOR UNITS, CONTROL SYSTEMS FOR AIR CONDITIONING UNITS, AND AUTOMATIC TEMPERATURE REGULATORS FOR AIR CONDITIONING SYSTEMS

contaminant particle counters

Dust filters and bags for vacuum cleaners

Dust filters and bags for vacuum cleaners