AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING (removing dirt or fumes from areas where they are produced B08B15/00; vertical ducts for carrying away waste gases from buildings E04F17/02; tops for chimneys or ventilating shafts, terminals for flues F23L17/02)

Child Classifications

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• F24F 1/00 Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
• F24F 11/00 Control or safety arrangements
• F24F 12/00 Use of energy recovery systems in air conditioning, ventilation or screening (with both heat and humidity transfer between supplied and exhausted air F24F3/147)
• F24F 13/00 Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
• F24F 2110/00 Control inputs relating to air properties
• F24F 2120/00 Control inputs relating to users or occupants
• F24F 2130/00 Control inputs relating to environmental factors not covered by group F24F2110/00
• F24F 2140/00 Control inputs relating to system states
• F24F 2203/00 Devices or apparatus used for air treatment
• F24F 2221/00 Details or features not otherwise provided for
• F24F 3/00 Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems (room units F24F1/00)
• F24F 5/00 Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00
• F24F 6/00 Air-humidification
• F24F 7/00 Ventilation
• F24F 8/00 Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
• F24F 9/00 Use of air currents for screening, e.g. air curtains