May 19, 2024

The air conditioner filter is an important part of your home’s air conditioning system and it needs to be changed regularly. In this article, we will discuss the different types of filters and what you need to consider when choosing one.

What are Air Conditioning Filters?

Air conditioning filters are essential for maintaining your system’s health and performance. Dirty or incorrectly sized filters can cause your AC to work harder and cost more to operate, while proper filter replacement can prolong the life of your system. A 14x20x1 air filter helps to remove large particles and dirt from the air before it enters the system, which can help improve comfort and respiratory health. 

To choose the right air-conditioning filter, you’ll want to consider the size of the room, the type of air conditioning unit, and the season. Most common types of air conditioning units require either a high-efficiency or medium-efficiency filter. 

High-efficiency filters trap more dirt, dust, and other particles while Medium-efficiency filters are better at controlling sponges and bacteria. To determine what kind of air conditioning filter is necessary for your specific needs, consult your owner’s manual or speak with a technician at an authorized service center.

Types of Air Conditioning Filters

There are three main types of air conditioning filters: pleated, paper, and electronic. Each has its advantages and disadvantages. 

Pleated filters are the oldest type of air conditioner filter. They have many small, thin panels that react to airflow and create a vacuum. This type of filter is best for large rooms with high ceilings, as it can trap a lot of dust and other small particles. Pleated filters tend to be more expensive than other types of filters, but they do not require replacement as often. 

Paper filters work similarly to pleated filters, except that the panels are made out of paper instead of metal. Paper filters are good for smaller rooms with less airflow or for areas where dirt or dust is not a concern. They do require replacement more often than pleated filters, but they also cause less damage to the air conditioning unit over time. 

Electronic air conditioning filters use technology similar to computer processors to work properly. Electronic filtering is most common in smaller room AC units and it works by analyzing the room’s air quality before sending a signal to the fan motor telling it how strong to run (normally, the fan will run at full speed). This type of filter does not require replacement as often as other types but can also be difficult to clean if clogged up.

Pros and Cons of Air Conditioning Filters

There are a few things to keep in mind when selecting air conditioning filters for your home. 

Pros of Air Conditioning Filters:

1. They can help improve indoor air quality and protect your family from harmful particles and allergens. 

2. They’re also effective at reducing noise levels, which can make living in a noisy environment more comfortable. 

3. AC filter replacements typically don’t cost a lot, so it’s not something you’ll need to worry about often. 

4. Finally, keeping your AC filters clean can help extend their lifespan and performance. 

Cons of Air Conditioning Filters:

1. Depending on the type of filter, they may need to be replaced from time to time (typically every 12 months or so). 

2. AC filters can be a bit of a hassle to get rid of, as they’re usually hidden behind the unit’s exterior. 

3. Some people find them difficult to clean – especially if they’ve got dirt and dust built up on them.

How to Choose the Right Air Conditioning Filter for Your Home?

If you live in an air-conditioned home, it’s important to keep your filter clean and replace it regularly. A dirty filter can cause your AC unit to work harder than necessary, which will cause higher electricity bills and possibly damage your equipment. Here are some tips on how to choose the right air conditioning filter for your home:

1. Know Your Needs

Before you buy an air conditioning filter, first make sure you know what type of air conditioner you have and the size of the filter needed. Some common types of AC units are window-mounted or floor-standing units, and each requires a specific type of filter. To figure out which type of filtering system you have, open the hood and look at where the airflow enters and leaves the AC unit. If there is a fan that blows from outside into the inside of the machine, then it’s a window-mounted unit; if there is ventilation on both sides of the AC unit, then it’s a floor-standing unit. You can also contact your local energy company to ask about specific requirements for your home. 

2. Know Your Furnace Type

Another factor to consider before buying an air conditioning filter is your furnace type ( Central/ductless heating ). Ductless heating systems use either mini refrigerators or Sysco coolers as their cooling device(s). These systems are often referred to as “home cooling systems” since the ductless unit cools the entire home. The mini refrigerator used in a ductless heating system will require a higher quality filter than the filters typically needed for central air conditioning. Sysco coolers are not typically equipped with a filter and must be regularly serviced by the company.

3. Match the Filter to Your Furnace Size

When choosing an air conditioning filter, also take into consideration the size of the filter media. Filters for window-mounted AC units are typically smaller in size and are usually made of paper or cotton. Filters for floor-standing AC units are larger and may be made from media such as foam, HEPA, or carbon. Make sure to select the correct size filter for your AC unit.


When it comes to choosing the right air-conditioning filters, there are a few things that you should keep in mind. First of all, make sure that the type of filter that you choose is compatible with your air conditioning unit. Secondly, consider how often you plan on using your air conditioning unit. If you use your air conditioner frequently, then select a high-quality filter that will help to improve its performance. Last but not least, be sure to read the installation instructions carefully before you start installing the filter.