Order from the source of Trion humidifiers and air cleaner filters and parts just like the contractors do. Our technical support team can assist you should you have any questions about your Trion humidifier or Trion air cleaner. You will find on-line owners manuals as well as exploded views of your model on its associated parts page. Remember to replace your Trion humidifier filter, humidifier pad and Trion air cleaner filter at least once per year for optimal operation.