Note(s)

• In this class, the following terms are used with the meanings indicated:
  • "stove" includes apparatus which may have an open fire, e.g. fireplace;
  • "range" means an apparatus for cooking having elements that perform different cooking operations or cooking and heating operations.

Note(s) [3]

• In this subclass:
  • air-humidification as auxiliary treatment in air-conditioning, i.e. in units wherein the air is also either cooled or heated, is covered by groups F24F 1/00 or F24F 3/14;
  • air-humidification per se, e.g. "room humidifiers", is covered by group F24F 6/00.
• In this subclass, the following terms or expressions are used with the meanings indicated:
  • "air-conditioning" means the 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" means the supply of air to, or its extraction from, rooms or spaces, and systems for circulating air within rooms or spaces, but does not cover the mere treatment of air being supplied to, extracted from, or circulated within, rooms or spaces.
• In this subclass, control or safety arrangements are classified in F24F 11/00. In order to indicate the type of air-treatment system in which these arrangements are used, further classification may be made in main groups F24F 1/00-F24F 9/00.

Note(s) [2018.01]

• In this group, it is desirable to add the indexing codes of groups F24F 110/00-F24F 140/00.