The Best AC Filters to Buy - Get the Right Filter for Your System

When it comes to keeping your home comfortable and healthy, air conditioning (AC) filters are an essential part of the equation. With so many types of filters available, it can be difficult to know which one is best for you. In this article, we'll discuss the different types of AC filters and help you decide which one is right for your needs.

Types of AC Filters

There are several types of air filters available for air conditioning systems. The most common ones include:

  • Fiberglass Filters: These disposable filters are made from spun fiberglass fibers and offer basic filtration. They should be replaced at least once a month.
  • Pleated Filters: These filters are made from pleated paper or synthetic materials and provide better filtration than fiberglass filters. They should be changed every three months.
  • High-Efficiency Particulate Air (HEPA) Filters: These high-efficiency filters remove more than 99% of airborne particles as small as 0.3 microns in size and should be changed every 12 months.
  • Carbon Filters: These activated carbon-based filters remove odors and chemicals from the air and need to be replaced every six months.

Factors to Consider When Choosing a Filter

When choosing an air filter for your AC system, there are several factors to consider: size, MERV rating, cost, and replacement frequency. Make sure you buy a filter that is the correct size for your system; if it’s too large or too small, it won’t work properly. The Minimum Efficiency Reporting Value (MERV) rating measures a filter’s ability to remove particles from the air; higher ratings indicate better filtration capabilities but also higher costs. Finally, check the manufacturer’s instructions regarding replacement frequency so that you can keep your system running smoothly.


In conclusion, having the right filter for your AC system can improve air quality, reduce energy costs, and extend its lifespan. There are several types of filters available on the market today; make sure you consider all factors before making a purchase in order to get the best value out of your investment!