Honeywell F300 Electronic Air Cleaners

One of the main advantages of Honeywell F300 series over other types of air cleaners is a washable filter, which requires no replacement and therefore, costs nothing to maintain. Simply wash the filter once a year.
Honeywell F300 electronic air cleaners feature an estimated 12-14 MERV rating and unlike the F100 and F200 series, cleans the air from dust, smoke, pet dander, mold spores as well as pollen and even certain bacteria types.
In comparison with a typical furnace air filter (1" thick) with capture rate of only 9% and $24-60 annual replacement cost, Honeywell F300 series boast an impressive 99% capture rate and $0.00 replacement cost.