| 摘要 |
An aircraft air conditioning system for conditioning of the cabin and/or cockpit air comprises an air re-circulation circuit ( 13, 14, 15, 16 ) and a UVC radiation unit ( 12 ) positioned so as to irradiate air in the re-circulation circuit ( 13, 14, 15, 16 ) with ultra violet light. The air conditioning system comprises a re-circulation fan ( 14 ) having the inlet thereof connected to a mechanical filter ( 33 ), and the output connected to a mixer unit ( 13 ) adapted to mix re-circulated air supplied to the mixer unit ( 13 ) by the fan ( 14 ), and a UVC radiation unit ( 12 ) positioned so as to irradiate the re-circulated air with ultra violet light at a wavelength of nm.
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