An HVAC filter is essential to your Heating, Ventilation, and Air Conditioning, or in short, HVAC system. It might not be a core part of the HVAC, but it sure does play a very important role in the enhancement of the HVAC system’s overall performance.

What Is An HVAC Air Filter?

HVAC air filters are designed to remove the smallest particles and pollutants that might worsen indoor air quality. It is basically used for filtering the air inside your home.

Various Types Of HVAC Filters

There are multiple types of air filters available in the market, and each comes with its own characteristics, air filters sizes, advantages, and disadvantages. Some of these types are HEPA filters, commercial furnace filters, commercial ac filters, Fiberglass filters, MERV filters, etc.

HEPA or High-Efficiency Particulate Air filters are considered one of the most effective HVAC filters available in the market. These filters can remove up to 99.97% of air particles which includes dust mites, bacteria, viruses, pet dander, etc. But these filters are more expensive than other air filters that can be found on the market.

Another great HVAC filter is the MERV filter. MERV or Minimum Efficiency Reporting Values filters use a rating ranging from 1-20 that reports the efficiency of the filter to capture air particles between 0.3 to 10 µm.

The Role Of HVAC Filters

The role of HVAC filters is many. It keeps your house clean and helps your HVAC system perform better. Here are some ways air filters play an important role-

Protects The HVAC Equipment

The prime reason filters are used in an HVAC system is to protect its equipment. It protects the equipment by removing pollutants and then maintaining its efficiency. When your HVAC system is running thoroughly, it consumes less power to pull air and maintain the temperature of the whole house. When your HVAC requires less power, your power bills will also be lower. So air filters can help you decrease your power bills.

Enhances Indoor Air Quality

Air filters help you breathe fresh air. It keeps the indoor quality of your house good by removing most pollutants from the air. Breathing clean air is very important. If the air quality inside your house is poor, it will have a rough effect on your and your family’s health. Refreshed air quality inside the house can protect both your physical and mental well-being.

Keeps The Indoor Clean

As filters filter the air inside your house by trapping particles from the air, it keeps your house cleaner. If you use the right filter for your HVAC, then your house will be less dusty. Clean indoors is important if you have older members or children in your house. So if you want to keep your indoors clean, you need to install a filter in your HVAC system.

Improves Health Condition

Air filters are capable of blocking allergens, viruses, and bacteria. So, if you’re struggling with frequent allergy attacks, one reason might be defective or wrong-sized air filters. It can also protect you from respiratory or lung issues as it blocks dust, bacteria, and other viruses.


Various types of filters and HVAC filter sizes like 19x20x1A air filters, 16x21x1 air filters or more, are available, and it’s up to you to choose the right filter for your HVAC. Regardless of which type you choose, buying the right filter and then properly maintaining it regularly is more important. If you want to learn more about HVAC filters, visit Custom Filters Direct, an air filter supplier, where you can find any air filter you want and can learn about filters and how they work.

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