You have no items to compare.
This ION330 Replacement Filter Set consists of 2 HEPA filters, 2 activated carbon filters, 2 photocatalyst filters, as well as 3 aromatherapy pads.
Each replacement cycle for the ION330 just requires 1 HEPA filter, 1 carbon filter, and 2 photocatalyst filters.
This ION330 Replacement Filter Set includes an extra set of HEPA filter and carbon filter for the next round of replacement. Note that the photocatalyst filters do not need to be replaced each time.
Refer to your Ionmax ION330 Air Purifier manual for instructions on replacing the filters.