At its most basic function, an air filter removes impurities such as dust, pet dander, or even bacteria from the air that flows through the system. Not only does this improve the air quality inside your home, but it also protects your HVAC system from potential damage. Air filters are a central, but often underappreciated, part of a central HVAC system. They don't just filter out bits of pollen and dust that would otherwise circulate around the house, and reduce indoor air quality.
They also provide a first line of defense against larger objects, such as pieces of loose insulation that enter the system, where they could cause damage or present a fire hazard. But if you don't change your air filter regularly, it can turn against you. Clogged air filters are the number one cause of HVAC system failures. The cabin air filter prevents dust, dirt, pollen, bacteria and exhaust fumes from entering your car's HVAC system.
It also prevents insects, leaves and other debris from clogging the system. The cabin air filter, vital for cleaning the air inside the car, keeps the air inside the car fresh so that you and your passengers can breathe easy, something you'll appreciate all year round, but especially during allergy season. A clear sign that the AC filter needs to be replaced is when the back of the unit is too hot. If the filter is heavily soiled, you may feel warm air coming out the back of the unit.
A clogged filter forces the air conditioner to work harder to keep the house cool. This will lead to more frequent air conditioning repairs and ultimately shorten the life of the unit. Reduce the load by simply changing the AC filter regularly. A vehicle's cabin air filter helps remove harmful contaminants, such as pollen and dust, from the air you breathe inside the car.
This filter is usually located behind the glove compartment and cleans the air as it moves through the vehicle's HVAC system. If you notice that your car has an unpleasant odor or that airflow has decreased, consider replacing the cabin filter to give the system and yourself a breath of fresh air. If you have a higher efficiency filter and don't change the AC filter often enough, a buildup of moisture can cause mold to build up in the ducts, leading to serious mold infestations. If you don't change the cabin air filter, the filter will become more clogged with dirt and debris and the efficiency of your car's filter and HVAC system will be compromised.