Air filters are a vital component of your home’s heating, ventilation, and air conditioning or HVAC system. Aid filters can be made of pleated paper, cloth, or fiberglass material which help clean the air, removing dirt, dust, mold, pollen, animal fur, hair, lint, microorganisms, and other contaminants. Having a good functioning air filter helps promote cleanliness and comfort inside the home.
In this article, you’ll learn the different types of air filters your home needs.
3 Types of Air Filters According to HVAC System Used
1. Furnace Air Filters
Minimum Efficiency Reporting Value (MERV) is the measure of how effective the air filter is in trapping harmful air contaminants, such as pollen, dust, dust mites, smoke, mold spores, and droplet nuclei. The higher the MERV rating of an air filter is the better. The best air furnace filters generally have an 8 to 13 MERV rating. Learn more about how to choose the best furnace air filters at filterking.com/air-filter-reviews/best-furnace-filters-review.
Here are the advantages of using the best furnace air filters:
- Helps prevent the spread of pollutants and allergens.
- Helps prevent the spread of harmful microorganisms that causes infection.
- Reduces energy cost because your HVAC system uses less energy to draw air, making your home comfortable.
- Benefits vulnerable groups, such as newborns, the elderly, and people with a compromised immune system due to illness.
2. Heat Pump Air Filters
The air filter of the heat pump of your heating or cooling system is essential in removing allergens and dust before returning the heated or cold air to your rooms. At least twice a year, homeowners should change heat pump air filters. Heat pump air filters become clogged over time with dust and debris, blocking the free airflow and reducing the efficiency of your HVAC system.
3. Air Conditioning Filters
Indoor pollution arises from the use of chemicals in cleaning household furnishings and other goods. That’s why it’s important to install air conditioning filters. Air conditioning filters in houses are used to remove solid contaminants, like dust, smoke, pollen, and grease to ensure clean air quality inside the home.
Air conditioning filters are installed on the return air of your AC system, wherein the air containing the contaminants are trapped. Clean air is discharged into the room along with the cool air. There are different types of air conditioning filters, including the following:
- Plastic Mesh Air Filters: These air filters are commonly placed at the return air of the indoor unit of room AC or window AC. They trap bigger dust particles and must be cleaned every two weeks or more frequently if space is polluted. Cleaning air filters involves using water and dishwashing detergent to remove stuck dirt.
- Electrostatic Air Filters: These air filters are usually placed in the return air of your AC where the air is subject to high voltage, and the ionized particles are drawn to the grounded plates.
- Carbon and Adhesive Filters: The carbon type air filter is made of activated carbon. It is very effective in removing odor brought about by bacteria and gases. Adhesive air filters are made of fiber glass material and cotton coated with an adhesive liquid that trapped the air particles.
3 Types of Air Filters According to Materials Used
1. Flat Fiberglass Filters
Flat fiberglass filters are common filters used in most apartments or homes. They rely on fiberglass when filtering the air before it goes into the HVAC system. The fiberglass air filter is easy to install, trapping large particles. However, smaller particles can still get through.
2. HEPA Filters
High-Efficiency Particulate Air or HEPA filters can trap 99.97 percent of small particles having 0.3 microns in size. Using HEPA filters is one of the most excellent ways to improve indoor air quality, removing allergens and keeping the air clean.
HEPA filters are usually made of interlaced twisted glass fibers to trap air particles. HEPA filters are also found in home air purifiers or air dehumidifier, vacuum cleaners, and cars. Use HEPA filters if you or a family member has asthma or allergy.
3. Pleated Filters
Pleated filters are effective in trapping small particles (about 1 to 10 microns), catching dust and other air particles without negatively affecting the airflow. This type of air filter can trap dust, lint, mold spores, dust mites, pet dander, pollen, and smoke.
Air filters are important in keeping clean indoor air quality. Your furnace, heat pump, and air conditioning systems need air filters to trap particulates that may cause disease. They also come in different materials, such as fiberglass, pleated filters, and HEPA filters with varying sizes to provide the air filtering you need.
Article Submitted By Community Writer