How many filters are there in the car?

There are generally four filters in a car, and car filters are rather general. An engine has three types of filters: air, oil and fuel, which are generally referred to as the "three filters". They respectively undertake the filtration of the medium in the engine's intake system, lubrication system and combustion system. 1. In the engine air circuit, there is: intake air filter.2. In the gasoline oil circuit, there is: gasoline filter. 3. In the engine lubrication system, there is: oil filter. 4. In the air conditioning system, there is: air filter
A filter is an accessory that filters impurities or gases through filter paper. It generally refers to the car filter, which is an accessory of the engine.
According to different filtration functions, they can be classified as: oil filters, fuel filters (gasoline filters, diesel filters, oil-water separators, hydraulic filters), air filters, air conditioning filters, etc. The engine has three types of filters: air, oil and fuel, which are generally called the "three filters". When combined with the air conditioning filter, they are commonly known as the "four filters". They are respectively responsible for filtering the media in the lubrication system and combustion system, as well as in the engine intake system and the air circulation system of the vehicle compartment.