How Often Should You Change Your AC Filters? A Comprehensive Guide

The type of air conditioning filter you use in your home can have a significant impact on how often you need to replace them. If you are using standard 1-3 inch air filters, it is recommended that you change them every 30-60 days if you don't suffer from allergies. If you have mild or moderate allergies, it is best to change the filter every three weeks. Generally, most air filter manufacturers and HVAC companies suggest changing the air filter every 90 days or 3 months. This can vary depending on the location of your home (e.g.

dry and dusty climates), if you have pets, and the age of your system and equipment. If you have pets at home, it is best to change the filter every 60 days or 2 months, and if there are several pets or people with allergies or respiratory conditions, it is recommended to change the filter every 20-45 days. Vacation homes or empty houses that aren't used much can wait to change the filters every 9-12 months. The more you use your home, the more often you should change the air filter. Pleated air filters, which are more expensive, can be changed up to every six months.

These general guidelines do not consider filter sizes or types, such as coarser filters or smaller filters. Therefore, it is recommended that you never leave an air filter unreplaced for more than 90 days. Ideally, you should change your air filter every three months; however, there are certain factors to consider when determining when to change an old filter. The only type of filters that trap allergens and spores are HEPA, or high-energy particulate air filters. Air filters help clean the air in a heating and air conditioning system by removing unwanted debris.

They also generate less air resistance, which can help the air conditioning system work more effectively and reduce wear and tear on components, including the fan motor. This can be done by looking at the size of your current filter or by consulting the equipment manual to determine the correct specifications. If someone in your family has mild to moderate allergies, you can install a better air filter or change it more often. You can hear it now: your HVAC technician is giving you lessons on how to change the air filter. Whether you're an air conditioning expert or not, the only way to be 100% sure that your system is working properly is to check the filter once a month. However, some air conditioning systems have filters inside the return air ducts scattered throughout several rooms in the house.

Numerous pollutants and debris, including excess dust, can cause air filters to become clogged and reduce air circulation throughout the house. As a general rule, it is recommended to change the air conditioning equipment (we are talking about filter traps, air filters, boiler filters, etc.) In the case of mild to moderate allergies, residents will want to try to replace the air filters every 30 days).When it comes time to buy new air filters for your air conditioning system, there are a few things to consider. The short answer is that according to most air filter manufacturers and HVAC companies, you should change it every 30 days when using less expensive fiberglass filters. And in doing so, the HVAC air filter will work twice as hard to overcome these barriers, making the unit less energy efficient. In conclusion, changing your air conditioning filter regularly is essential for maintaining a healthy home environment and keeping your system running efficiently.

Depending on your specific needs and circumstances, it may be necessary to replace your filter more often than once every three months. If someone in your family has allergies or respiratory conditions, it is best to replace your filter every 20-45 days. It's important to remember that changing your air conditioning filter regularly will help keep your system running efficiently and reduce wear and tear on components like fan motors. It will also help keep allergens and other pollutants out of your home's air supply.

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