User Guide
F50F AND F300E ELECTRONIC AIR CLEANERS
69-0756—05 2 
CONTENTS
Operating Your Electronic Air Cleaner    ..............................  3
Getting the Most from Your Electronic Air Cleaner    ................................  4
Maintaining Electronic Prefilter(s), Cell(s) and Postfilter(s)  ..............................  6
How Electronic Air Cleaning Works      ................................  11
Before You Call for Service      ..............................  14
Honeywell 10-Year UltraClean Coil Guarantee™   ...................................  15
Limited Five-year Warranty       ..............................  16
Product Registration       ..............................  17










