CARE AND MAINTENANCE
General care
Take good care of your 411+ to ensure that it delivers optimal performance.
During use vacuum the pre-filter occasionally to remove dust, or wash it on a gentle, low
temperature cycle in the washing machine.
Change the main filter every six months, depending on the operating conditions.
Remember to unplug the unit before changing the main filter.
Occasionally wipe the top of the unit with a dry dust cloth.
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