By the name itself air filters are the one that cleans the air before it enters our vehicle engine to prevent damage, accelerate internal engine wear, cause by contaminants that is present on the air.

During filtering of air the particulates are stocked inside air filters which then causes clogging of the air filters, that���s why we need to replace our vehicle air filters.

If your have a clog air filters, the amount of air that reaches the engine will be restricted, if this happen, the air/fuel ratio mixture that reaches the engine will become too rich, which means that so much fuel is present on the mixture.

Now what happens if the air/fuel ratio that reaches our engine is too rich?

If the air/fuel ratio is too rich, so much gas is burned inside your vehicle combustion chamber which then may cause a black smoke that comes out from your vehicle exhaust.

So replace the air filters as often depending on your vehicle driving conditions, usually air filters are replaced ones a year, but if you drive on the dusty condition replace it more often, you can buy it at any auto parts at a very inexpensive price also it is very easy to replace.