To alleviate excessive home dust, start by cleaning or changing air filters on furnaces and air conditioners. Seal air leaks around the home with caulk and weather-stripping. Check to see if air ducts need cleaning. Remove or cover items that collect dust, and remove dust when necessary using a damp cloth rather than dry dusters.
Dirty or ineffective filters on air conditioners and furnaces promote dust build-up. To learn what type of filters are most effective and how often they should be changed, consult manufacturer's manuals or service technicians. Gaps in window frames, under doors and around electrical wires and fittings cumulatively let in as much dust as an open window. The EPA suggests sealing these cracks and holes to reduce the amount of dust in a home. The air ducts of forced-air heating and cooling systems accumulate dust and debris over time, but cleaning the system is a major operation and the EPA has not made a ruling on whether such cleaning is effective or necessary. Homeowners should hire a professional to assess whether air duct cleaning is necessary or whether changing the filters is sufficient.
Wall-to-wall carpeting collects dust, and the safest option is to replace it with wood, tile or linoleum floors, suggests WebMD. Otherwise, it should be vacuumed at least once or twice a week. Cloth drapes also are dust-catchers and should be replaced with metal, wood or plastic blinds. Doormats outside doors reduces the amount of outside dust entering the home. Removing clutter reduces the amount of dust collecting on surfaces. Damp cloths or cloths with spray cleaners pick up dust, whereas dry cloths or dusters merely push the dust around.