Our multi-stage purification uses a combination of high-density dust filters and specialized inserts to scrub the air of allergens and odors. This is built into every Bravo Milano 9,000 BTU unit to ensure a healthy nursery or bedroom. For those with pets, our Dual-Zone systems can act as whole-room air scrubbers while they cool. You can find replacement filters and advanced Other Accessories to further customize your air quality. To keep the airflow high, we recommend cleaning the primary filters included in your Installation Kits every month. This feature makes the UFC Multi-Zone series an excellent choice for health-conscious families. Clean air is just as important as cool air in creating a truly comfortable home.