AIR-CONDITIONING

**Definition:** This place covers:

Methods and apparatus for air-conditioning, i.e. the supply of air to or the treatment of air in rooms or spaces by means which provide for the treatment of the air in the following ways:

Methods and apparatus for humidification of air for rooms or spaces.

Methods and apparatus for supplying air or extracting air from rooms or spaces, either by forced movement (for example by fans) or by natural effects (for example convection).

Methods and apparatus for circulating air within rooms or spaces, either by forced movement (for example by fans) or by natural effects (for example convection).

Methods and apparatus for use of air currents for screening, for example of entrances of buildings or of areas where particular operations are performed.

Use of energy recovery systems in air conditioning, ventilation or screening.

Details, for example control arrangements, safety arrangements, ducting arrangements or air flow control members, which are specially adapted for the methods or apparatus specified above.

Treatment, e.g. purification, of air supplied to human living or working spaces in air conditioning systems or in room units otherwise than by heating, cooling, humidifying or drying.

Self-contained air purifiers.

**Limiting references (this place does not cover):** - 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 ventilating shafts; Terminals for flues -> F23L17/02

**Glossary:** - Air-conditioning: Supply of air to or the treatment of air in rooms or spaces by means of cooling or a combination of cooling and a further kind of air treatment, e.g. humidification, heating or air purification. - Ventilation: Supply of air to rooms or spaces, extraction of air from rooms or spaces, or circulation of air within rooms or spaces.