Menu
Products Technology Better Air Product Finder
  1. United States
  2. Filtrete Home Filtration Products
  3. About Us
  4. How to Install an Air Filter
Blue gradient in wave shape

Installing your Air Filter

For maximum effectiveness, we recommend you change your 1" filter at least once every three months and your 4"+ filters at least once a year.

A few simple steps

  • Filtrete™ Air Filter in plastic packaging
    Remove packaging

    Remove plastic packaging and paper insert from filter, leaving cardboard frame intact.

  • Airflow arrows on the top of Filtrete™ Air Filter
    Point arrows towards blower motor

    Find the airflow arrow and point it toward the AC/heat blower.

  • Placing Filtrete™ air filter in wall HVAC unit
    Wall unit: place filter in Unit
  • Placing Filtrete™ air filter in central HVAC unit
    Central unit: slide filter into unit
Filtrete™ Smart App on phone screen

Get Filter Change Reminders with the Filtrete™ Smart App.

LEARN MORE

Filtrete™ Brand

Back To Top
Follow Us
Filtrete is a trademark of 3M.
Change Location
United States - English