First, find the air filter location. Before changing the air filter, get the correct size. Disposable air filters usually come surrounded by a cardboard frame, while reusable air filters like aluminum honeycomb filters have metal frame. Some will indicate the specific size of the filter. When you search for a air filter replacement, choose the same size. For filters that don’t indicate size, use a measuring tape to measure the length, width and thickness of the filter.

Place the filter correctly. Most filters are printed with an arrow that indicates furnace filter airflow. Place the filter with an arrow pointing toward the furnace, in the direction of airflow. Correct placement is important. The unit will use more energy if the filter is not properly installed; it has to work harder to pull air through the opposing side.

Air filter replacement is important because it can extend furnace life, reduce energy bills and improve indoor air quality. Replacing the air filter on a regular basis can improve your indoor air quality and help your HVAC system run more efficiently.

While knowing how to change an air filter is necessary, schedule inspections at least twice a year to keep ahead of any seasonal issues. Look into our products list to get more selections, such as HEAP, Air conditional filter, harmful gas removal filter....