Abstract: A vacuum cleaner comprising an elongated body having a nozzle end and a handle end, an air inlet arranged at the nozzle end, a handle arranged at the handle end, at least one air outlet arranged on the elongated body, and a dust separation unit arranged inside the elongated body. The vacuum cleaner further comprises a first motor/fan unit and a second motor/fan unit each arranged inside the elongated body. The first motor/fan unit and second motor/fan unit are arranged to operate in parallel to generate an airflow from the air inlet through the dust separation unit to the at least one air outlet.

Abstract: A vacuum cleaner apparatus having a first vacuum cleaner unit and a second vacuum cleaner unit. The apparatus comprising a first motor/fan unit arranged in the first vacuum cleaner unit and a second motor/fan unit and a second dust separation unit arranged in the second vacuum cleaner unit. The apparatus further comprises a connection interface configured to removably connect a suction inlet of the second vacuum cleaner unit to an airflow path of the first vacuum cleaner unit. The apparatus further comprises a control arrangement capable of operating the apparatus in a cooperative cleaning mode in which the first and second motor/fan units are operated simultaneously. A method of operating a vacuum cleaner apparatus is also provided.

Abstract: A vacuum cleaner dust bag having a connector plate comprising a hole section, an air permeable filter bag positioned on a downstream side of the connector plate, and a flexible sleeve. The filter bag is attached to the connector plate and the sleeve is provided outside the filter bag. The sleeve is arranged to keep the filter bag in an initial folded position and allow the filter bag to expand when air is blown through a hole formed in the hole section of the connector plate.

Abstract: A stick vacuum cleaner comprising an elongated shaft part, a housing arranged to be attached to the elongated shaft part, the housing comprising an air inlet, a container arranged to accommodate a removable air-permeable dust bag, a motor fan unit for creating an airflow, and an exhaust air outlet, a nozzle arranged at a first end of the elongated shaft part, the nozzle comprising a nozzle inlet via which debris is transported from a surface to be cleaned by means of the created airflow to the dust container, and a handle arranged at a second end of the elongated shaft part, wherein the container is arranged to be removably attached to the housing.