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4-Filter Replacement Set Compatible with Ivation IVAHEPA01 True HEPA Air Purifier.
Set includes 1 True HEPA Filter, 1 Charcoal Filter, and 2 Carbon Filters.
Carbon filter absorbs unwanted fumes/vapors, Charcoal filter eliminates bad odors, HEPA filter captures tiny particles as small as .5 microns.
Suggested replacing Carbon filter every 3 months, HEPA and Charcoal filters every 6 months.