Contamination and odor removal and controls, therefor, sold as a unit, for use with air conditioning system and air purifying system, namely, negative pressure units in the nature of air filtering units and air purifying units; air sterilizing and disinfecting device; ventilation installations and apparatus, namely, ventilating fans for commercial, industrial and household use; negative pressure units, namely, air purification units; electrolytic ozone generating apparatus, namely, ozonizer g...