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Removing Mildew From Carpets
If the musty mildew odor is detected, stop its growth. Use a
dehumidifier to remove the moisture from the air and, in turn, from the
carpet. As long as the moisture is low the mildew will not grow. Open
up the windows and use fans to circulate air over the carpet. If the
mildew growth is on the surface, open draperies to allow the sun to
shine on the carpet. Even artificial light will help.
If flooding occurs and the back of the carpet is not made from all
man-made fibers, dry the back of the carpet as quickly as possible.
This may require the services of a professional carpet cleaner to take
the carpet up and dry it at their plant. On smaller carpet or if only a
portion of a large one is wet, one corner of the carpet may be lifted
so fans can circulate air underneath. By attaching the hose to the
exhaust of a vacuum cleaner, it can be inserted under the carpet and
used to blow air.
Caution: Care should be taken
when using electrical appliances around a wet carpet to prevent
electrical shocks. If the carpet is dried quickly, this should prevent
mildew growth.
If mildew growth has started, it will be mainly in the back. If the
back can be examined, a discolored area may indicate the growth
location. The musty odor will be evident if some moisture is still
present. If no odor can be detected, a little hot moisture from a steam
iron on the back of the carpet will quickly bring out the musty smell.
To kill the mildew once the area is determined, a rug or smaller
wall-to-wall carpet can be taken outside so the back can be exposed to
the direct rays of the sun, which will usually kill the mildew in a day
or so. Giving the affected back area a light painting of a 1/2%
solution of hydrogen peroxide (one part of fresh 3% hydrogen peroxide
to 5 parts of water) and then letting the sun-shine on it, will make
the action take place at a faster rate. Cleaning with a diluted carpet
cleaning solution will wash the mildew from the surface but this action
alone will not kill the mildew.
These procedures usually will not remove the discoloration from inside
the fibers. To do this may require very destructive bleaching that can
destroy the fibers. If the carpet is returned and used under the same conditions in which
the mildew originally grew, it can grow again. Not that the mildew
wasn't killed but, rather, new mildews spores can get on the fibers.
This
article was written by Anne Field, Extension Specialist, Emeritus, with
reference from the Georgia Extension bulletin, How to Care for Carpets
and Rugs, the Hoover Company, Nebraska Extension bulletin Carpet Care -
Cleaning and Stain Removal, the Carpet and Rug Institute, Allied Fibers
and Plastics Inc. and DuPont Clean Up Carpeting bulletin.
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