In general, most air filter manufacturers and HVAC companies recommend changing your air filter every 90 days or 3 months. This may change 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. 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, the efficiency of the filter decreases. Find out below if you should replace the filter more often. Air filters should be changed every 90 days on average.
An HVAC filter will only last one to three months on average. Which means you need to keep track of the date you installed them. If you wait too long to change the filter, indoor air quality will suffer. Check your air filter today and change it if you are behind schedule and enjoy fresh, clean air in your home.
In situations where you can't find the MERV rating on the air cleaner package, you can look for a filter with a lot of pleats per foot. After a renovation, such as a project involving drywall, pieces of drywall, dirt, and dust may build up in the air ducts, restricting airflow through the air filters. However, it will put unwanted pressure on your HVAC system, resulting in poor air quality and air circulation. Households with a pet should generally replace filters after two months; those with more than one pet may need to replace the filter once a month.
Make sure you're aware of your home's air filter replacement to avoid many of the common problems that accompany dirty HVAC air filters. The fewer occupants there are in a house, the less pollutants and debris will accumulate in its air filters. When you begin to notice an increase in air particles or contaminants, the filter needs to be changed more frequently. Using a washable air filter is also beneficial because you can change it however you want and save money on air filters.
Investing in a relatively inexpensive air filter and replacing the filter at the right time can save you a lot of money on repairs. If you want a dog or cat that is hypoallergenic or does not shed hair, you may not have to replace the air filter as much. While a filter with a higher MERV rating should last longer, it can also restrict airflow in your home. While these factors affect the frequency of air filter replacement, you should visually inspect the filter every month for excessive particulate buildup.
The fabric of the air filters included in this class makes it much more difficult for the HVAC system to operate smoothly.