Are All Air Filters the Same? How to Choose What’s Best for Your Baldwin County, AL Home

Published on: March 7, 2012

When it comes to filters for your Baldwin County, AL air conditioning and heating unit, all are not created equal. Most people don’t give much thought to the filters they purchase to filter dirt, dust mites, and other particles from the air. A carbon air filter is the most typical type purchased for a Baldwin County, AL air conditioning and heating unit. Although a carbon filter is very inexpensive, you may pay for the low cost with allergy symptoms, frequent colds or even asthma. That is because a carbon filter only traps about 10 percent of the airborne pollutants in the air conditioning and heating unit of your Baldwin County, AL home.


A pleated filter is capable of trapping a greater percentage of dirty air particles than a typical carbon filter. As its name implies, a pleated filter is folded in several different directions in order to catch more dirt and other pollutants in the air. The Environmental Protection Agency (EPA) estimates that pleated filters trap approximately 40 percent of airborne particles.

An electrostatic filter is a permanent filter for the air conditioning and heating unit in your Baldwin County, AL home. It uses an electrostatic charge to trap the tiniest particles that travel through your air conditioning and heating unit. This type of filter uses a dust collection plate that must be cleaned regularly for the best results. However, once the filter is cleaned, you don’t have to replace it like you do with a carbon or pleated filter.


The most powerful filter on the market in Baldwin County, AL is the HEPA filter. HEPA, which stands for high efficiency particulate arresting, can trap more than 99 percent of airborne particles. The only thing that can get by a HEPA filter is a particle that is smaller than 0.3 microns. Most common household airborne irritants, such as pollen and dust, will be trapped within the HEPA filter. This type of filter is more expensive, but it is also reusable. If you wash the HEPA filter regularly, you won’t have to replace it every three months like other types.