Complete 2 system furnace repair and preventative maintenance check. Replaced filters. The system needs air purifiers installed to help with the biological growth starting in the supply section of the system. The system in the attic needs an inline safety switch for the drain to prevent water overflowing through the furnace and potentially getting onto the ceiling. Upstairs system needs air purifier installed. Blower assembly should be pulled and cleaned. The upstairs system needs a drip leg on the gas line.