by purification, e.g. by filtering; by sterilisation; by ozonisation

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

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 > characterised by the treatment of the air otherwise than by heating and cooling > by purification, e.g. by filtering; by sterilisation; by ozonisation

CPC:

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) > characterised by the treatment of the air otherwise than by heating and cooling > by purification, e.g. by filtering; by sterilisation; by ozonisation

IPC and CPC are identically structured here. All 2 subcodes exist in both systems.

2 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 2021.

Child Classifications

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F24F 3/163 Clean air work stations, i.e. selected areas within a space which filtered air is passed since 2021 IPC+CPC Available in IPC and CPC
F24F 3/167 Clean rooms, i.e. enclosed spaces in which a uniform flow of filtered air is distributed (air distribution by perforated walls F24F7/10) since 2021 IPC+CPC Available in IPC and CPC