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Friday, April 19, 2024

Which Type Of Air Filter Should You Install For Your Air Conditioner?

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Having an air filter for your air conditioner is essential for the quality of your indoor environment and the health of your family. In this article, we’ll cover everything you need to know about choosing the right air filter for your needs.

What are the different types of air filters?

There are several types of air filters available on the market, each with its benefits and drawbacks. The most common types of air filters are mechanical filters, activated carbon filters, and ozone generators.

Mechanical filters are the most basic type of air filter, and simply remove particulates from the air by trapping them in a mesh or other type of filter material. These types of filters are typically very effective at removing dust, pollen, and other airborne particles, but cannot remove gaseous contaminants or odors.

Activated carbon filters are a more advanced type of air filter that can remove both particulate and gaseous contaminants from the air. These filters work by adsorbing contaminants onto their surface, which makes them ideal for removing things like smoke, chemicals, and even some types of bacteria and viruses. However, they can be more expensive than mechanical filters and need to be replaced more frequently.

Ozone generators produce ozone gas, which is highly reactive and will chemically break down many types of pollutants in the air. These devices can be very effective at reducing smells and cleaning the air, but can also be dangerous if used improperly.

How to choose the right filter for your air conditioner?

When it comes to choosing an air filter for your air conditioner, there are a few things you need to take into account. The first is the size of the filter. You choose a 14x18x1 air filter is a right size for your particular air conditioner model. The second thing you need to consider is the type of filter. There are two types of filters, disposable and reusable. Disposable filters need to be replaced every few months, while reusable filters can last for years. The third thing you need to think about is the MERV rating. This stands for Minimum Efficiency Reporting Value, and it tells you how effective the filter is at trapping particles. The higher the MERV rating, the more effective the filter will be.

Now that you know what to look for, let’s take a look at some of the different types of air filters:

Pleated Air Filter: A pleated air filter is made of multiple layers of fabric that trap particles as they pass through. These filters have a high MERV rating and can last up to six months before they need to be replaced.

HEPA Air Filter: A HEPA air filter is made of very fine mesh that traps even the smallest particles. These filters have a very high MERV rating and can last up to one year before they need to be replaced.

Activated Carbon Filter: An activated carbon filter is made of porous charcoal that absorbs contaminants as they pass through. 

Pros and Cons of each type of filter

When it comes to selecting an air filter for your home, there are a few different options to choose from. The most common types of filters are pleated filters, activated carbon filters, and HEPA filters. Each type of filter has its own set of pros and cons that you should take into consideration before making a decision.

Pleated air filters are the most common type of filter used in homes. They are effective at trapping a wide range of airborne particles, including dust, pollen, and pet dander. Pleated filters also have a longer lifespan than other types of filters, since they can be washed and reused multiple times. However, pleated filters can be more expensive than other types of filters and may need to be replaced more frequently if you have pets or live in a particularly dusty environment.

Activated carbon filters are ideal for people with allergies or sensitivities to certain airborne particles. These filters work by adsorbing particles onto their surface, which traps them, so they cannot enter your lungs. Activated carbon filters can last for several months before they need to be replaced, making them more cost-effective than pleated filters in the long run. However, they may not be as effective at trapping small particles like dust or pollen as other types of filters.

HEPA (high-efficiency particulate air) filters are the most effective type of air filter for trapping small particles like dust, pollen, and smoke. HEPA filters must meet strict standards in

How often should you change your filter?

It is important to regularly change your air conditioner’s filter to maintain peak performance and avoid costly repairs. How often you need to change the filter depends on a few factors, including the type of filter you have, the environment in which your AC unit operates, and how often you use your air conditioner.

If you have a disposable filter, it is recommended that you change it at least once every three months. If you have a reusable filter, you can clean it and put it back in place every month or two. However, if you live in an area with a lot of dust or other particles in the air, you may need to change your filter more frequently.

If you use your air conditioner frequently, you will also need to change the filter more often. For example, if you use your AC unit daily during the summer months, you should change the filter every month or two. On the other hand, if you only use your air conditioner occasionally, you can get by changing the filter less often.

 Ultimately, the best way to determine how often to change your AC filter is to consult your owner’s manual. Every AC unit is different, so it’s important to follow the manufacturer’s recommendations for changing the filter.


There are many factors to consider when choosing an air filter for your air conditioner, and it can be confusing trying to figure out which one is right for you. Hopefully, this article has helped clear things up a bit and given you some direction on which type of air filter to install in your AC unit. If you have any further questions, feel free to reach out to a professional HVAC contractor who can help you select the right filter for your specific needs.

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