Air Filter is a vital part of your car, truck, or suv. Without them your engine can't get enough oxygen and stops.
Two main types of auto filters exist and are used in vehicles: the cabin air filters and the combustion air filters.
 The cabin air filter is placed in the "outside-air" intake for the vehicle's passenger compartment and is usually a pleated-paper filter. Some of them are rectangular and others are roughly triangular in shape. Cabin air filter replacement has recently become an opportunity for increased billings and profits at professional oil-change locations. Inappropriate removal and reinstallation of this filter can lead to water leaks (by misalignment of the water diverter or seals) and in rare instances, a cracked windshield. Dirty cabin air filters can significantly reduce airflow from the cabin vents, as well as bring in allergens into the cabin air stream. You may intensify cooling and heating efficiency by proper, periodic replacement.
Filters can be changed on a DIY basis or at an automotive service center.
Other type of auto filters is a combustion air filter, which prevents contaminants from entering the engine's combustion chambers. This filter is usually changed at oil-change time. But depending on operating conditions of the vehicle, you may change it at longer or shorter intervals.
A flat panel filter is used in most modern, fuel-injected vehicles. This is commonly placed inside a plastic box connected to the throttle body with a large hose. Occasionally these are replaced with a conical filter and cold air intake which, in most cases, includes a heat shield to protect the intake air from underhood temperatures, along with tubing to improve airflow into the throttle body. An improved air-intake system can generate a raise in power and efficiency in many cases.
A cylindrical air filter is typically used in older vehicles with carburetors or throttle body fuel injection. This is usually a few inches high and approximately a foot in diameter (the most common version is 14 inches in diameter and 3 inches tall) and positioned above the carburetor or throttle body and secured with a metal lid.
You should change your auto filter regularly else this gets too dirty or clogged and your engine won’t be able to suck enough air into the combustion chambers. Your car will lose power and run roughly if the engine runs “rich” (i.e., too much gas and not enough air). Your “Check Engine” light also may come on.
If you really overlook an air filter for a long time, your car may stop running at the most inappropriate moment. If an air filter were dirty enough, it could allow abrasive contaminants into the combustion chamber.
If you operate your car under severe duty, such as frequent driving on dirt roads or a lot of “stop and go” driving around town, then you should halve the recommended service intervals for the inspection and replacement of the air filter.
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