The invention relates to a cyclonic vacuum cleaner which comprises a suction inlet fluidly connected in series to a vac-motor for drawing a dirty airflow in through the suction inlet. The suction inlet is fluidly connected downstream to both a first cyclonic separator and also to a flow device via a flow junction, the flow junction being configured for dividing the dirty airflow into two separate airflows: a first airflow passing through the first cyclonic separator and a second airflow passing through the flow device, thus stepping down the dirty airflow through the first separator compared to the dirty airflow through the suction inlet. The flow device is either a second cyclonic separator, an air filter or an air turbine.A screening member is provided upstream of the flow device for screening out some dirt particles from the second airflow so that the dirt particles are retained instead in the first airflow, thus "concentrating" dust loading in the first airflow.
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