Mi G9 Manuel D'utilisation page 7

Care & Maintenance
Maintenance Precautions
Always use genuine parts to keep your warranty from being
voided.
If the filter, extension rod, or high torque brush bar becomes
clogged, the vacuum cleaner will stop working shortly. To restore
its functionality, clean the clogged component.
If the vacuum cleaner will not be used for an extended period,
fully charge it and disconnect it from the power then store it in
a cool, low-humidity environment away from direct sunlight. To
avoid over-discharging the battery, recharge the vacuum cleaner
at least once every three months.
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Cleaning the Vacuum Cleaner
Wipe the vacuum cleaner with a soft, dry cloth.
Cleaning the Dust Compartment, Pre-filter, and
Cyclone Assembly
1. The vacuum cleaner's cleaning ability will be reduced if the dust
compartment is filled to the "MAX" mark. To regain performance,
empty the dust compartment in a timely manner. Before emptying
the compartment, make sure the vacuum cleaner is disconnected
from the power, and do not press its power button.
2. Press the dust compartment bottom cover release button, then
empty the contents.
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