by separation, e.g. by filtering

Full Title

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

Child Classifications

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• F24F 8/108 using dry filter elements
• F24F 8/117 using wet filtering
• F24F 8/15 by chemical means
• F24F 8/175 using biological materials, plants or microorganisms
• F24F 8/183 by centrifugal separation, e.g. using vortices
• F24F 8/192 by electrical means, e.g. by applying electrostatic fields or high voltages