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GENERAL CLEANING
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COVER
1. Remove the cover.
2. Clean the cover with a damp cloth.
PRE-FILTER
Clean the pre-filter using a vacuum cleaner or wash
it under running water with a cleaning brush.
Do not put the pre-filter back in until it is dry.
Humidity can have an adverse effect on the
quality of the A681 HYBRID filter beneath it.
A681 HYBRID FILTER
The A681 HYBRID filter cannot be cleaned. Dirt is
normal and shows that the filter is working.