You’re looking for the right filter to meet the needs of the allergy sufferers in your home. This electrostatic air filter is designed for households that require a high level of smaller particle filtration. Beat the high levels of dust and pollen with this filter, as it captures 90% of particles measuring three to 10 microns in size. What that really means is bacteria, dust mites, dust, pollen, mold, smoke, smog and more. Each new filter installation delivers 30 to 90 days of reliable performance. Imagine enjoying trouble-free air conditioning and central heating when you replace your filters regularly with a Duststop furnace filter.