A full-functioning HVAC system is very important to ensure your and your family’s comfort and good health. An HVAC system maintains your preferred temperature at your home and removes all harmful particulates. There are many air filter sizes available in the market. Among them, 13x21x1 air filter and 15.25×15.25×1 air filter sizes are the most suitable for your home.

Frequency of Changing Your HVAC Air Filters

Installing an HVAC system is not enough if you want to make sure of the proper living condition inside your home. It comes with a lot of maintenance rules. One of them is to change the ac air filters regularly. You must be asking what is the maximum time period for changing an air filter. The answer is three months or ninety days. Changing the air filters every ninety days will likely avoid many undesirable problems associated with it.

Why You Must Change Air Filters So Frequently 

There are many reasons for changing air filters once in three months. One of the major steps in maintaining the HVAC system is to make sure the filters are clean. And the air filters cannot stay clean for more than three months. So, to ensure the proper functionality of the HVAC system, the air filters are needed to be changed from time to time. Some other reasons are discussed as follows:

Increased Electricity Bill

One of the main tricks for keeping your electricity bills in check is regularly replacing the air filters. When the air filters are not clean, they will cause the HVAC system to work harder than usual, which will induce more energy consumption. As a result, your electricity bill will increase. If you want to avoid this problem, make sure to change your air filters from time to time. Feel free to contact an air filters supplier if you have a hard time changing the air filters.

Increased Respiratory Problems

It is important to keep your air filters clean to ensure that your family members breathe in healthy and clean air. When the air filters are not changed for a long time, the filters become clogged and cause the undesired accumulation of bacteria, viruses, molds, pollen, and whatnot inside your home. This accumulation is responsible for worsening respiratory problems, such as asthma, bronchitis, sore throat, difficulty breathing, and so on.

Frequent Breakdowns

When the air filters are not clean, they will put more pressure on the HVAC system to maintain the required temperature. If this process goes on for a long time, it will have a much adverse effect on the system, causing it to break down more frequently. The only way to prevent this situation is to make sure the filters are clean and unclogged. The air filters cannot stay unclogged for more than three months.

Malfunction of the HVAC system

If the HVAC system is not working properly, it can cause many types of malfunctions, including fire hazards. If you want to solve this problem, you must replace the air filters. Once the filters are replaced, it will ensure the proper functionality of the system and helps you to avoid any malfunctions.


It is important to replace your air filters every three months. You can buy the filters and change them yourself or contact an air filter supplier if you need any help. Before changing the filters, make sure you know the size of your air filters for example 16x25x1 air filters, 20x25x1 air filters. BY changing the air filters every ninety days, you can save a lot more money than you can imagine. Feel free to contact Simply Filters if you have any questions or inquiries.