(1) Side brush, filter, brush roll, disposable dust bag, etc. are all consumables. They can be wore and tore after using for sometime. The percentage numbers of side brush, filter, and brush roll on the homepage are indicators of how much service life is left for this particular component. When the remaining service life is dropped to less than 20%, please change the component in time.
 
(2) The percentage numbers of sensors on the homepage are not the percentage of remaining service life but the percentage of unstained area on the sensor. If the number has dropped to less than 20%, please wipe the sensor clean with a soft cloth.

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