We stock every part for every Trane air cleaner ever made. Our technical support team can assist you should you have any questions about your Trane air cleaner. Order from the source of Trane air cleaner filters and parts just like the contractors do. You will find on-line owners manuals as well as exploded views of your model on its associated humidifier parts page. Trane air cleaner filter media must be replaced two times per year if you have heating and air conditioning or once per year if you only have heating.