In one study, however, removing cat allergens from the air had no effect on asthma symptoms. It is best to avoid carpets if possible. Bedding and Curtains. Using semipermeable coverings to fully encase mattresses and pillows is the most proven effective step in reducing dust mite levels. Curtains should be replaced with shades or blinds and bedding washed using the highest temperature setting.
Damp housing increases the risk for asthma.
Electric stoves should replace gas ovens, which release nitrogen dioxide. Cockroaches should be eliminated by professional exterminators. If a new home can't be found or if the owner is too emotionally attached to the pet, then precautions must be taken. The pet should be kept out of the bedroom and areas where the allergic individual spends a lot of time, such as a favorite chair. Washing cats and dogs once a week can reduce allergens but it should be done by a nonallergic person and preferably outdoors.