Half of them were randomly assigned to a group whose homes and classrooms were vacuumed daily using a HEPA filter and airborne allergens controlled by an air purifier. Classroom levels remained unchanged whether or not the more vigorous methods were used, but the greatest difference was at home, where allergen levels were significantly reduced. Draperies and curtains hold dust, which can be an irritant for someone with asthma and allergies. It's best to replace fabric window coverings with mini blinds, Rosenwasser advises. They're easier to clean more regularly.
Drapes definitely hold in the dust.
To pick up dust on hardwood floors and furniture, it's best to use damp cloths. And for allergy-prone families, more rigorous weekly cleaning efforts may be necessary. Keep box springs, mattresses, and pillows enclosed in zippered allergen-proof casings, which can be purchased at any linen store. Air purifiers with HEPA filters are especially helpful in the bedroom. Think twice before running a humidifier, since the humidity will encourage the reproduction of dust mites, Rosenwasser says.