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CARE AND MAINTENANCE
Take good care of your Pure 411 to ensure that it delivers optimal
performance.
General care
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.
When the unit is open to change the filter, vacuum any dust
that may have accumulated inside the unit.
Occasionally wipe the top of the unit with a dry dust cloth.
