How a vacuum cleaner works

In short: A vacuum cleaner uses a fan to create negative pressure so that air with dirt flows into the appliance. A filter separates the dust from the air.

In more detail: It is not the suction that “pulls” dust but the higher air pressure outside that pushes air into the area of lower pressure (luftdruck-und-wetter).

In detail

• Motor and fan: The impeller flings the air outwards and creates negative pressure.
• Bag or bagless: Bags catch dust, cyclone appliances separate it by centrifugal force.
• Filter: HEPA filters catch fine particles, important for allergy sufferers.
• Nozzles: Carpet and hard-floor nozzle with suitable brush.
• Suction power: Effect depends on airflow and negative pressure, not just wattage.
• Energy label: Shows efficiency and noise (schall-und-dezibel).
• Cordless vacuum cleaner: Convenient but limited run time (lithium-ionen-akku-richtig-nutzen).
• Care: Change bags in good time, clean filters.