Air filters are an essential component of any heating and cooling system, as they are responsible for cleaning the air that circulates through it. The primary purpose of air filters is to trap particles and contaminants such as dust, mold, pet dander, and fungal spores. This is done by using a mesh that becomes denser as air passes through it, trapping these materials while still allowing air to flow freely. If the air filter is not changed regularly, the air will not be able to pass through as easily, and more particles will be able to pass through the mesh, leading to a decrease in indoor air quality.
Air filters are also used in cars to remove dirt, dust, and sand from incoming air before it enters the engine. This helps to increase engine performance and fuel efficiency by ensuring that the air burned inside the engine is as clean as possible. Clean air ignites faster and better inside the engine cylinder, resulting in improved combustion efficiency and fuel economy. Additionally, a clean air filter prevents dirt and debris from reaching the combustion chamber, reducing the likelihood of costly repairs.
It is important to note that a car engine uses hundreds of cubic meters of air per hour, so it is essential that this air is clean. The Minimum Efficiency Report Value (MERV) is used to measure a filter's ability to screen airborne particulates. It is also important to check with a mechanic to see if your vehicle contains a cabin air filter and if it needs to be replaced. If you suffer from allergies, changing your air filter more often can help you breathe easier at home.
Oil-moistened polyurethane foam elements are sometimes used in automotive replacement air filters. Depending on the grade and thickness of the foam employed, an oil-moistened foam filter element can offer minimal airflow restriction or a very high dirt capacity, making them popular for off-road rallies and other motorsports applications where high levels of dust are present. Air filters come in various types such as paper, foam or cotton filters. It is important to check with a mechanic to determine which type of filter is best for your vehicle and how often it should be changed.
If you live in an area with high pollen content, it may be beneficial to change your air filter more often than recommended. In conclusion, air filters play an important role in maintaining the performance of your car or HVAC system by trapping particles and contaminants that can damage your engine or decrease indoor air quality. It is important to check with a mechanic to determine which type of filter is best for your vehicle and how often it should be changed.