Failing cabin air filters tend to clog, leading to reduced airflow for air conditioning systems and decreased HVAC efficiency. This obstruction can have a variety of effects, such as restricting airflow and making the interior of the car cabin less comfortable. In addition, the temperature may rise slightly and become difficult to control. A clogged cabin air filter can cause a vehicle's HVAC system to work much harder, which can lead to engine burnout.
Dirty or clogged filters will also reduce the amount of air flowing through the vents, resulting in air leaving the ventilation grilles that does not reach the temperature at which it has been set. The cabin air filter is an essential part of regular vehicle maintenance. It prevents pollutants such as dirt, dust, smoke, smog, pollen, mold spores and exhaust gases from entering a vehicle's cabin through the heating, ventilation and air conditioning (HVAC) system. When large particles enter the cabin air filter, they not only make it difficult for air to enter and filter properly, but also cause a lot of noise when air passes through.
If you notice any unusual odors coming from your vehicle's ventilation grilles or if your car interior smells bad, it may be a sign that the cabin air filter needs to be replaced. Ignoring the air filter can negatively affect your vehicle and put your personal health at risk. Changing the cabin air filter is not just about air quality, but it is also a safety issue and a maintenance requirement of the climate control system. A faulty filter can mean inadequate cabin air, affect air quality, and cause the AC system to consume more energy, among other effects.
You should change the cabin air filter of your vehicle the moment you notice any of the signs mentioned above, or it can cause several problems in the car that can also lead to an accident. Just because a cabin air filter doesn't directly affect your vehicle moving from point A to point B doesn't mean you should delay buying a new one or not replacing it at all. Changing the cabin air filter regularly will ensure that passengers don't have to roll down the windows to get some fresh air.