The MVA Vertical Air Handler runs quietly, utilizing a high-efficiency ECM with variable-speed control. Optional emergency backup electrical heat is available and will provide supplemental warmth for added comfort in the harshest of winters. Filter racks are integrated into the Vertical Air Handler, keeping the blower clean and contributing to IAQ. Filters protect heating and cooling units from any damage and contribute to product longevity. In addition to protecting the product, filters also keep pollutants and allergens from entering the home through air recirculating inside. For those who have concerns with asthma or high sensitivity to allergens, high-efficiency filters are available and compatible with Panasonic’s Vertical Air Handler.