Your home's forced-air heating or cooling system helps to control dust by filtering the air. A standard cheap fiberglass filter protects your furnace from large dust particles and provides maximum airflow, but it does little to reduce household dust. More expensive pleated filters usually provide a good balance between cost and filtration efficiency. These filters trap 80 to 95 percent of particles 5 microns and larger. Here are the best furnace filters to buy. But if you have family members with allergies, consider spending more on high-efficiency filters, which capture 99 percent of airborne particles as small as 0.3 microns (bacteria and viruses, fumes and pollen). These furnace filters are one of the best for how to remove dust from air. Be aware that you'll have to run your furnace fan full time to get the maximum benefit from a high-efficiency filter, and you'll have to change the filter frequently to prevent damage to your furnace from the reduced airflow. If you go the high-efficiency route, install a filter monitor such as FilterScan, which automatically alerts you when your furnace filter needs changing, or the GeneralAire G99 Filter Gage, which requires you to manually check it. Get the GeneralAire G99 Filter Gage from Amazon. ncG1vNJzZmivp6x7p63MoqOyoJGjsbq5wKdlnKedZL2zu8memq1nmKTEbsDOZp6erF2ntqV5zp9kna2jqXw%3D