The Honeywell F50B1009, F50B1017, F50B1025, F50B1033, F50B1108, F50B1116, F50B1124 and F50B1165 electrostatic electronic air cleaner is an electronic air cleaner that was made in the 1970s. Fortunately parts are still in stock and still made for these units. If you wish to replace the entire unit order an F300 model. You will find a link to two of them below.