You should replace your air filter approximately every 90 days, if you don't have allergies, but AC professionals generally recommend changing it every 45 days for maximum efficiency. Be sure to replace it with the correct size and type of air filter. If your air conditioner is working properly, you can remove the filter and buy one that is identical to it. In general, most air filter manufacturers and HVAC companies suggest changing the air filter every 90 days or 3 months.
This may 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 in the house, you should consider changing the filter every 60 days or 2 months, and for households with multiple pets or people with allergies or respiratory conditions, we recommend changing the filter every 20 to 45 days. Vacation homes or vacant homes that don't have much use can usually wait to change filters every 9-12 months. The more you use your home, the more often you need to change the air filter.
The ideal is to change your air filter every three months, however, there are certain factors to consider when determining when to change an old filter. A general rule of thumb for pleated air filters (such as those manufactured by FilterBuy) is to replace the filter every 90 days. As the filter traps more dirt, dust and allergens from the air, its efficiency decreases. Pets can add excessive dander to the air in your home and can bring more particles such as dust, pollen and dirt from outside into your home. If someone in your household has a condition that affects their lungs and breathing, change filters more often.
Air filters trap pet hair, dust, and other irritating particles so that the air conditioning system returns fresh, clean air to your home. The strongest filters are reusable, usually with metal frames, and can be cleaned according to the manufacturer's instructions. Pleats create an additional surface area that can attract and trap more dirt, making them last longer than fiberglass flat filters. You can hear it: Your HVAC technician is giving you lessons on how to make sure you change your air filter. The Minimum Efficiency Report Value (MERV) rating for an air filter measures how effectively the filter prevents dust and other contaminants from passing through the filter into the air stream. Yes, changing the filter has several impacts on your HVAC system's ability to cool your home and overall air quality. To ensure maximum efficiency of your HVAC system and maintain good indoor air quality in your home, it is important to regularly change your AC air filter.
The general consensus is that you should replace it every 90 days or 3 months; however, this may vary depending on factors such as location of your home, if you have pets in the house, age of your system and equipment, etc. For households with multiple pets or people with allergies or respiratory conditions, we recommend changing the filter every 20 to 45 days. Vacation homes or vacant homes that don't have much use can usually wait to change filters every 9-12 months.
