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Custom Carbon Pre-Filters
(One set of two pre-filters fits Honeywell 16"x25" or 20"x25" Electronic Air Cleaners, i.e. F300) Helps reduce pet, smoke, & other household odors. Fits Honeywell Electronic Air Cleaners. -
Honeywell Aluminum Mesh Pre-Filters
(One set of two pre-filters fits Honeywell 16"x25" or 20"x25" Electronic Air Cleaners, i.e. F300) (We recommend washing Aluminum Mesh Pre-Filters every two months, at the same time as the Electronic Air Cleaner's cells. Just vacuum loose dirt off the pre-filter and wash it off with water.)