These are the Ultra Pollen Disposable Filters that work in conjunction with the Reusable Black Foam Filters that comes with every machine.
This filter should be placed into the filter well of the machine, first, then the black reusable filter should be placed over it. When changing out your filters, the reusable filter can be cleaned and washed in mild detergent, then left to dry. Replace the disposable about once a month or as needed. Return On Warranty Issues Only
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Filters may come in an alternative color, which has no affect on performance.