If you want your indoor air free from pollutants and dust particles, there is no alternative to installing an air filter in your heating and cooling unit. This is truer when you have a family member who has some respiratory problems. But as there are different types of air filters available in the market, how do you know which one will be the right fit for your HVAC unit? No worries. In this article, I’ll tell you about the seven types of HVAC air filters with pros and cons. 7 Types of HVAC Air Filters & Their Pros and Cons 1. HEPA Air Filters HEPA HVAC air filters can remove up to 99% of all pollutants and recommended by the US Department of Health. With this type of HVAC air filter, you can have maximum protection in your house, especially if you have an allergy or asthma problem. Pros Cost-effective Needs to change only once in few years Can detect larger particles such as pollen and pet dander Can block particles that are the size of 3 microns Works effectively against bacteria