What are the symptoms of a dirty air filter?

[BrandonLynn]

The symptoms of a dirty air filter are: 1. Insufficient air intake, leading to lack of power; 2. Inadequate oxygen supply, causing incomplete combustion, resulting in black smoke emission, excessive carbon deposits in the cylinders, and darkened engine oil. The replacement method for an air filter is: 1. Remove the damping rods on both sides of the glove box; 2. Take off the glove box to reveal a black rectangular cover, pry it open and remove the clips; 3. Take out the old air filter; 4. Install the new filter element. The functions of an air filter are: 1. Ensuring the air conditioning filter fits tightly against the housing to prevent unfiltered air from entering the cabin; 2. Separating dust, pollen, and solid particles from the air; 3. Absorbing moisture, soot, ozone, odors, carbon oxides, SO2, and CO2 from the air, with strong and lasting moisture absorption capabilities; 4. Preventing car windows from fogging up, ensuring clear visibility for the driver and safe driving; 5. Maintaining clean air in the passenger compartment to prevent bacterial growth.