Thank you for your question.
Actually, there?s a strong possiblity the cat dander can remain for
longer than 5-6 months. Some researchers say it can last for years
after the cat is gone. The good news is, there are steps you can take
to hasten removal.
paw-rescue.org - Allergies
?Researchers noted that cat dander is a very hardy antigen that stays
in the environment for years after a cat is gone. People with severe
allergies can reduce their risk by using high-efficiency filters and
avoiding plush furniture and carpet.?
Menagerie - Cat's Cradle
?Vacuum your house weekly and, in particular, your bedroom ? all of
the bedroom, including floors, walls, windows, ceilings, light
fixtures, drapes, air vents, air ducts and all sides of your mattress
and pillow. Vacuuming can cause an increase in symptoms, as it stirs
up allergens creating an increase in airborne matter. Dust all
surfaces with a damp cloth and try to eliminate the use of cleaners
and polishes. You can wash your bedding, curtains, carpet, etc., but
cat dander is a sticky substance and may be difficult to eradicate.
You may wish to encase your mattress, pillows, comforters and box
springs in allergy-proof covers, but I have found no conclusive
evidence to suggest that this is an effective deterrent to cat
Cat dander can remain in a room or home for years after the cat has
gone. Eliminate any area carpets or rugs, heavy draperies, Venetian
blinds, hanging decorations, framed pictures, plants, books, magazines
and any furniture that is bulky or stuffed (i.e., reclining chair)
from your bedroom. Shut the door upon entering and leaving the
bedroom. A light-gauge, synthetic, smooth material may be most
appropriate for window coverings. Current information suggests that
even a complete change of bedroom furniture might be helpful. Sealed
wood (such as that found in Danish type furnishings), plastic and
metal are also options to consider.?
?Dander allergens are sticky, and they adhere to other surfaces.
Dander on a smooth surface, such as a wall, can be easily wiped off,
but dander in soft materials, such as carpets, mattresses, upholstered
furniture, and clothing, can persist in that fabric for long periods
of time. That is why, unless special steps are taken, pet dander can
remain in a home for up to six months after the pet has been removed.?
Allergybegone.com - Allergy Relief
?An Air purifier can remove pollen, pet dander..."
Open Site - Allergies: Pets (6)
"Cats are about equally allergenic no matter what breed. Their
allergens are harder to escape than dog allergens since cat dander is
smaller and stickier than dog dander."
"Prevention (I've edited the following information because you have
already removed the cat from your house.)
Experts recommend taking the following steps:
- Consider investing in a central air cleaner.
- Do a thorough cleaning. Furniture, carpets, drapes and even walls
can trap pet dander. Consider removing your carpets (they can trap
allergens for up to six months)."
cat dander remove
eradicate cat dander
cat dander allergies
cat dander allergens sticky