Air Purifier Manual

11
FREQUENTLY ASKED QUESTIONS
My Filter Status Bar (Model HFD320 series only) / Check Filters light has not come on but when I checked my
filter, it was really dirty.
In conditions where smoke, pets or air with a lot of particles are present it is possible that the filter could be dirty
sooner than indicated on the indicator. The filter life indicator on your unit runs on a timer and if there are more
particles in your air than in an average home, your filter could need cleaning sooner than indicated on the display.
The indicator is intended to be used as a guideline and individual environmental conditions will vary.
My unit will not turn on.
The air purifier has safety features to ensure that the unit is ready for operation. Check to make sure that the
Permanent, Washable ifD® Filter and rear grille are installed correctly. When properly installed, you will hear an
audible “click” when you re-install both the ifD® Filter and the rear grille. If your air purifier still won’t turn on, contact
Consumer Relations at 1-800-477-0457.
My Air Purifier is starting to make noise and the air output is less. What’s wrong?
The filters may be dirty. High amounts of particles can block the pores in the filter and stop the air from moving
through it. The filter and pre-filter should be cleaned.
How long should I run my Air Purifier?
It is recommended that you run your air purifier when you are at home for air cleaning. The unit will be more
effective when doors and windows are closed. If desired or conditions warrant, you may run your air purifier
24 hours a day.
Can I wash my Odor & VOC Reducing
K
Pre-Filter?
No. Washing the Odor Reducing
K
Pre-Filter will destroy it. You can, however, wash the Permanent Pre-Filter.
How do I use the additional pre-filter that is packed in the plastic bag?
Your air purifier came with an installed washable porous foam pre-filter that helps capture the larger airborne
particles before they reach the ifD® Filter. If you would like the additional benefit of Odor & VOC Reduction, you may
replace the washable porous foam pre-filter with the Odor & VOC Reducing
K
Pre-Filter that was packed in a plastic
bag with the cleaner. You must first remove the washable porous foam pre-filter that came in your air purifier and
replace it with the
K
Pre-Filter. This pre-filter is not washable and should be replaced every 3 months for optimum
performance.
How does the electronic filter check work?
The Check Filter light will illuminate when it is time to check and clean the filters after 3 months of continuous
operation. After the filters have been cleaned/changed, you should reset the electronic filter check
(Check Filter light). See instructions on pages 6, 7, 8 depending on which model you own.