If you're looking for the air filter in your HVAC system, it's usually located in a slot above or below the unit. For other types of systems, you'll likely find the air cleaner behind the return air grille on the wall, ceiling, or closet door. It's usually close to the thermostat or right next to the air handler for your air conditioning system. In some systems, filters are located in the return air duct.
If you're having trouble locating the filter, you can always call a professional HVAC technician to help. They can show you where the filter is located, how to remove and insert a new one, and how to get the right filters for your system. Replacing your air conditioner filter is an important maintenance task that will help keep your unit running smoothly. When the filter becomes clogged, dust and dirt can enter the air conditioner and cause wear and tear on parts.
Fortunately, replacing the filter is a simple task once you know where to find it. Households with many occupants and pets may need to change their air filters more frequently. If you're not sure how often to replace your filter, consult with a professional HVAC technician for advice.