This is a genuine Toyota OEM filter that is put in your vehicle when it is brought in for service at your local Toyota dealer.
This item is made out of cotton or fabric-like material, and is made to increase airflow through the filter. The air filter is an important part of a car's intake system, because it is through the air filter that the engine "breathes." 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. The air filter's purpose is to filter out dirt and other foreign particles in the air, preventing them from entering the system and possibly damaging the engine. Your car's air filter should be changed at least once a year. However, an air filter may need to be changed more frequently if you live in an area with dirt roads or heavy pollution or dusty areas, as these factors can cause an air filter to become dirty more quickly. You can have a mechanic inspect your air filter, and change it if necessary, during an oil change or your yearly tune-up.
A clean air filter is important for your car's performance. This means that your air filter should be changed regularly, or your gas mileage will suffer. A dirty air filter can also cause other systems to run ineffectively, such as your emission control system, which regulates the car'sair-fuel mixture. A dirty air filter can also cause your spark plugs, which ignite the fuel in the combustion chambers, to foul, as there will be too much fuel without enough air; if your spark plugs foul, you may have problems keeping your car running