滤清器工作原理：
1. 空气滤清器在汽车进气系统中扮演很重要的角色，因为只有通过它，汽车才能进行“呼吸”。
发动机为了运转必须有充足的燃料和空气的混合物，所有的空气进入之前必须先通过空调滤清器，用来吸收空气中的灰尘和其他外界物质，从而有效的阻止了灰尘和杂质进入系统中以至于对发动机造成破坏。
An air filter is an important part of a car's intake system, because it is what allows the car to "breathe." An engine needs an exact mixture of fuel and air in order to run, and all of the air enters the system first through the air filter. This catches the dirt and other foreign particles in the air, preventing them from entering the system and possibly damaging the engine.
2.空调滤清器的作用。
用于过滤汽车车厢内的空气及车厢内外的空气循环。
除去车厢内的空气或进入车厢内空气中的灰尘、杂质、烟臭味、花粉等，以保证乘客的身体健康。
同时空调滤清器还具有使挡风玻璃不易雾化的作用。
空调滤清器一般要求10000公里更换一次，才能达到最佳效果。
误区:一般人会认为,夏季开空调，滤芯才起作用；其实它一年四季都在用于过滤进入车内的空气。
为了保护您的身体健康，可不要忽视了这个小滤芯的功效！Cabin air filter is to filter the air in the car and to be responsible for air cycle. It can catch the dust, impurity,cigarette smell,pollen in the air to guarantee the passenger’s health..Meanwhile, cabin air filter can also make the windshield not easy spray.
Cabin air filter should be change per 10000 kilometers in order to reach the best effort. Mistake: normally, people think only opening the air conditioner, the cabin air filter will
work, in fact, it works always to help you to filter the air. Therefore, do not ignore this little filter’s effort considering your health.
3.机油滤清器。
机油是发动机正常运转的“血液”。
机油的作用是清洗、润滑、散热、密封。
机油滤清器是保证机油正常发挥作用的重要一环。
它可将发动机在燃烧过程中产生并混入机油中的金属磨屑、碳粒及机油逐渐产生的胶质等杂质过滤掉。
这些杂质会加速运动零件的磨损，易造成润滑油路堵塞。
机油滤清器保证了内燃机的正常运转，使内燃机的使用寿命大大提高，亦可延长其他零部件的使用寿命。
Oil is the blood for the engine normal work. The function of the oil is cleaning, oiling, heat dissipation, sealing. Oil filter is one important part to guarantee the oil work normally.Oil filter can filter impurity such as the metal abrasive dust、carbon particles and the colloid gradually produced by oil .The impurity will accelerate the wear of the moving parts which will lead to the road of oil blocked. Oil filter guarantees the engine work normally, improves the engine’s lifetime, and extends the others parts lifetime.
4.燃油滤清器。
燃油滤清器的作用是过滤发动机燃烧所需要的燃料（汽油、柴油），阻止燃料中带来的异物如尘土、金属粉、水份有机物等进入发动机，防止发动机磨损及造成供油系统的阻塞
Fuel filter
Fuel filters help keep out dirt, pollutants and debris originating from the gasoline itself, and rust and dirt from the gas tank from entering the car's engine. Unfiltered fuel running around a car's system would soon clog lines and hoses; not to mention letting
water into the car's lubrication system, soon overheating parts and grinding the entire system to a halt.. Changing the car's fuel filter regularly is necessary to allow smooth running of the vehicle and to put less stress on engine parts.
燃滤的作用是阻止污垢，污染物，汽油本身产生的碎片，灰尘等进入气缸和汽车发动机内。
未经过滤的燃油围绕在汽车系统周围会很快堵塞线路和软管，更不用说让谁进入润滑系统了，会使零件温度猛增，使整个发动机系统停顿下来。
经常更换汽车的燃油滤清器是非常必要的，从而保证车辆的正常运行以及减少发动机配件的压力。