Let us understand the function of cabin and engine air filters individually.
1. Functions of Cabin Air Filter
Also known as a car pollen filter, it is a vital component of the Heating, Ventilation and Air Conditioning System (HVAC). Before air moves inside the cabin of your car, it goes through this filter which:
The filter traps all sorts of contaminants, including bacteria, viruses, mould spores, dust, debris, pollen, pet fur, and the toxins of exhaust gases. This way, it prevents harmful pollutants, keeping the cabin clean.
It maintains the efficiency of the AC system by keeping the pollutants away. A clogged cabin air filter causes reduced airflow, foul smells from the vents and fogged windows. These may cause the blower motor to need more power to perform, disrupting mileage.
2. Functions of Engine Air Filter
Located under the hood on the top or side of the engine, a fully working air filter:
It maintains the airflow to the engine since polluted air is a prime reason behind faulty spark plugs. It controls engine depositions and the exhaust emission levels in check.
A car engine requires over 10,000 litres of oxygen to burn one litre of fuel. In this respect, an engine air filter ensures optimum airflow quality and quantity, enhancing acceleration.
A perfectly working engine air filter prevents even the tiniest particle, as small as a grain of salt, from entering the internal engine components like valves, cylinders and pistons. This keeps the engine's health and performance in check.