A Zehnder system (and its filters) are designed to keep air contaminants from entering your home, while efficiently recovering heat (or cooling) from the air exiting your home. Not sure which Zehnder filters to use for your Zehnder system? Check out Small Planet Supply's Zehnder Filter Selection Guide.
Need Help with Zehnder Filter Selection or Replacement?
More information on filter types is available at Small Planet Supply's blog post, Three Types of Filters that Help Your Zehnder Keep Indoor Air Clean.
Small Planet University's Thinkific Course covers routine system maintenance, including system maintenance and it's free. Enroll in the course by clicking here.