Fellowes Air Purifiers AP-300PH User Manual
4. Place the new filters in the main unit.
(True HEPA Filter should always be
inserted first, then the Carbon filter.)
5. To reset the filter light once a new True
HEPA and/or Carbon Filter is installed:
a. Plug the unit back in with the front
cover off.
b. Turn on the unit.
c. Locate the filter replacement button
on the display panel.
d. To choose which filter light to reset,
press the filter replacement button
for 1 second at a time to toggle
between the True HEPA and Carbon
Filter icons.
e. Press and hold the filter replacement
button for 3-5 seconds. A short beep
will be heard and the light should
turn off.
f. Place the front panel on the unit and
the air purifier is ready to use.
Air Quality Sensor Cleaning
Lightly vacuum the air quality sensor every
two months after removing the front panel.
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