Essick Air FILTERWATCH 127-001 - Manual (Page 6)

it at a lower speed, test your unit periodically by running it at least half an
hour on the “High” setting. If the red light appears, it is time to replace the
Pre-Filter and check the condition of the HEPA Filter.
WHICH FILTER SHOULD YOU CHANGE?
Your unit contains a Pre-Filter and a HEPA Filter. To determine which filter to
replace, run this test:
1. Install new Pre-Filter, leaving the current HEPA Filter in place.
2. Set the unit on “High” and run uninterrupted for at least half an hour.
3. If the FilterWatch indicator remains off, you won’t need to replace the
HEPA Filter.
4. If the FilterWatch illuminates, you will also need to replace the HEPA
Filter.
5. Excessive handling will damage the HEPA filter.
REPLACE A BLOCKED FILTER IMMEDIATELY
A clean filter ensures maximum air quality and it keeps your unit running
smoothly and trouble-free. To extend the life of the pre-filter, heavy accumula-
tions of dust may be gently vacuumed away. Retest the system as a replace-
ment HEPA filter may still be needed. To order replacement filters, call
1–800–547–3888 or use the convenient order form in this booklet.
To Install or Replace Carbon Pre-filter:
• Unplug unit.
• Place air purifier on its back,
on a protective surface.
• Locate the removable filter compart-
ment door on the bottom of the air
cleaner.
• Slide the cover upward toward the
front grille, then pull outward to
remove.
• Pulling on the filter tab, slide both the HEPA Filter and black Pre-Filter for-
ward and remove the dirty black Pre-Filter from the air purifier. Remove
the new Pre-Filter from the polybag.
• Place the new Pre-Filter on top of the
pleated HEPA Filter, and push both fil-
ters back into the air purifier until they
stop.
• Slide filter compartment door back
into position. Press down and lock in
place.