F24F 8/175
Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using biological materials, plants or microorganisms
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Edits on 5 Mar, 2022
Golden AI
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F24F 8/175
Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using biological materials, plants or microorganisms
Infobox
Classification Type
Parent classification
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