Filters and Airborne Particles in Dallas | Best Pick Reports
Buildup of pollen, dust, ragweed, and bacteria inside homes is common. Each time a door or a window opens, many new particles enter the home. If the particles are not proactively removed, they can begin to accumulate on furniture and in air ducts.
Unfortunately, standard throwaway filters used by most heating and air systems only catch large dust particles and do little to stop most pollen, ragweed, and small dust particles. Certain advanced filtration systems, such as high-end pleated media filters, which remove 99% of particles five microns or larger, and HEPA filters, which remove over 99% of particles 0.3 microns or larger, are now available. For comparison, the tip of a sharp pencil is about 200 microns. Of course, as the efficiency of the filter increases, so does the price.