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How Vacuum Cleaners Work

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Upright Vacuum Cleaners:

  1. In a simple upright cleaner, the motor drives both the suction fan and a rubber belt to drive the brush roller or agitator.
  2. The brush roller dislodges dirt and dust in the carpet under the cleaner, whilst the suction fan draws this over the fan and into the dust bag.
  3. Clean air is drawn over the motor by the cooling fan. This air keeps the motor temperature down and then exits through vents in the top cover.
  4. Dirt and dust is trapped and settles in the dust bag while the air passes through the twin surfaces of the bag, which act as a filter.
  5. A mechanism detects the decrease in air pressure caused by blockages in the bag and the vents and warns when the bag is full.

Cylinder Vacuum Cleaners:

  1. In a cylinder cleaner with a through flow system, the motor directly drives a suction fan, which draws air through the vacuum cleaner.
  2. Dirt and dust are drawn up from the cleaning head through the hose. Unlike the upright cleaner, the dirty air enters the dust bag first.
  3. After the air passes through the dust bag, depositing the dirt, it is drawn through a primary filter to catch any escaping dust before reaching the fan.
  4. The fan blows the air out of the side of the cleaner through a HEPA filter (High Efficiency Particulate Air), this filters out the tiniest particles of dust.
  5. When vacuuming is complete, the cord can be rewound using the spring-operated cord rewind.


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