PurAirFilters.net - Pur Air Fans & Filters
Choosing an air purifier
Sealing up your home against
the chill of winter is a good way to save on
energy bills -- but it could also keep stale
air in, which can trigger allergies. So - The
Good Housekeeping Research Institute looked
at portable air-purifiers as a solution.
Good Housekeeping’s Technical Director
John Kupsch says, “The best models on
the market are those that use a motorized fan
to move a lot of air in and out of the room.”
To help choose the correct size unit for your
room - look for a C.A.D.R. number on the box.
Kupsch says, “C.A.D.R. stands for clean
air delivery rate and it's a certified number
that actually tells you how much clean air is
being delivered to the room.”
Good Housekeeping says that C.A.D.R. ratings
on air purifiers range from 25 to 440. The highest
number is the fastest clean air delivery rate
– so Good Housekeeping says to look for
as high a C.A.D.R. number as you can find.
Another factor - is the choice of filter material.
Kupsch says, “One of the best filters
on the market is typically a HEPA filter and
this particular filter also employs a separate
carbon pre-filter which is better for odor reduction
and it also has the pleated cloth to help filter
out smoke dust and pollen and pet dander. And
then it has another plastic filter that helps
take out the large particles.”
He says some products claim to clean the air
using electrostatic means. That’s similar
to taking a balloon and rubbing it on your hair
and expecting the dust particles to be attracted
to that.
Air purifiers that have a "HEPA" filter
and electric motor proved to be the most effective
products in Good Housekeeping tests.
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