Class 011: AIR CONDITIONING INSTALLATIONS AND APPARATUS, NAMELY, [ EVAPORATIVE AIR COOLERS, ] CENTRAL AIR CONDITIONING UNITS [, THRU-WALL AIR CONDITIONING UNITS, HEAT PUMPS, AIR HUMIDIFIERS, AIR DEHUMIDIFIERS, ELECTRIC, GAS AND KEROSENE AIR SPACE HEATERS, AIR PURIFIERS, AIR FILTERS FOR NON-RESIDENTIAL, INDUSTRIAL AND HOME INSTALLATIONS, AND REPLACEMENT PARTS THEREFORE; AIR HANDLERS FOR CIRCULATING CONDITIONED AIR THROUGHOUT A HOME, OFFICE OR COMMERCIAL BUILDING; HEAT EXCHANGERS FOR HEAT RECOVERY; SWIMMING POOL DEHUMIDIFICATION INSTALLATIONS AND APPARATUS, NAMELY, DEHUMIDIFIERS; HEAT PUMPS; HEAT EXCHANGERS; HEATING INSTALLATIONS AND APPARATUS, NAMELY, HOT WATER COIL FOR HEATING WATER; COOLING INSTALLATIONS AND APPARATUS, NAMELY, COOLING EVAPORATORS, ELECTRIC SPACE COOLING APPARATUS; DRYING INSTALLATIONS AND APPARATUS, NAMELY, AIR DEHUMIDIFIERS; VENTILATION INSTALLATIONS AND APPARATUS FOR RESIDENTIAL, NON-RESIDENTIAL AND INDUSTRIAL INSTALLATIONS, NAMELY, VENTILATING EXHAUST AND VENTILATING FANS ]; Class 037: [ MAINTENANCE, REPAIR AND SERVICING OF VENTILATION AND AIR CONDITIONING INSTALLATIONS AND APPARATUS AND HEAT REGENERATING INSTALLATIONS AND APPARATUS ]
