What is the Purpose of an AC Filter Media Roll?

August 8, 2022

Filter media rolls are an irreplaceable component of air conditioning systems. However, the role of this filter is often unknown. As with most technical appliances, if it works, there is no need to ask how.

This is precisely why many homeowners might spend more money than they should as they acted too late. You can learn more here. Let’s see exactly what is the purpose of an AC filter media roll.

AC Filter Media Roll Usage

Air filter rolls are made of a relatively lengthy material that filters the air. This material is installed in a compatible appliance to remove contamination from the air. Thanks to this filter, you will avoid the accumulation of residue in the equipment.

The air filter rolls purify the air right before it is drawn in by the fan to flow through the ductwork. When the air is inducted into the AC system, it is first warmed or cooled before being pushed into the ducts that distribute it further. Otherwise, the equipment could malfunction, and the air would be of inferior quality or even unbreathable.

These rolls are made of a material that stops bacteria, leaving only clean air to pass through. So, by their function and positioning right at the beginning of the ventilation system, the rolls play a vital role in the proper functioning of the AC.

When Should You Change Your Air Filter?

Because air filters constantly trap residue and store them in their material, you should change them once a month or every two months. The service life, of course, depends on how often you use the air conditioner. If you use it constantly, you should change it as often as possible. However, if you use it less frequently, you can change it every four months.

Keep in mind that if you have pets, you may need to get them replaced more often. The reason is that pet hair is absorbed by the air conditioning and can clog the whole system if left for a long period. Frequent filter changes are also recommended if you suffer from allergies or are in an area with high levels of pollen. The cleaner the filter, the better it purifies the air, so you can enjoy its freshness.

What You Need to Know When Changing Your Air Filter

Since there are numerous filters, you need to be careful when changing them to choose the best one for you and your AC. Here is what you should consider:

MERV Rating

First of all, you have to consider the MERV rating - Minimum Efficiency Reporting Value - which shows how efficient the filter is at filtering air particles. You should purchase filters with at least a 6 MERV rating to achieve the best performance.

Types of AC Filter Media Rolls

  • Fiberglass Filters

This filter is the most common and frequently used. They are disposable, and you can find them in most stores.

  • HEPA Filters

This type of filter is the most efficient, but it also can cause a higher electricity bill.

  • Washable Filters

You can wash these filters and reuse them. However, you need to do so on a regular basis.

  • Pleated Filters

People who suffer from allergies should use this type of filter because they capture dust and pollen particles very well.


I believe in making the impossible possible because there’s no fun in giving up. Travel, design, fashion and current trends in the field of industrial construction are topics that I enjoy writing about.

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