How Often Should You Change Your Air Filter? A Guide to Indoor Air Quality

Mar 20, 2024HVAC Air Filter

Maintaining the quality of air in your home is crucial for both comfort and health—a task primarily managed by your HVAC system’s air filter. Air filters play a vital role in keeping the air in your home clean by trapping dust, pollen, and other particles that would otherwise be freely circulating. To understand a filter’s effectiveness, look for its MERV rating (Minimum Efficiency Reporting Value). This rating scale, from 1 to 20, indicates how well the filter captures smaller particles. Choose filters with higher MERV ratings for significantly improved indoor air quality.

Frequency of Filter Replacement

The frequency of changing an air filter depends on several factors, including the following:

  • Type of filter
  • Your home’s location
  • Whether you have pets
  • Age and usage of your HVAC system

For most households, it is recommended to change your air filter every 90 days or approximately every three months. However, homes with pets should consider a more frequent replacement schedule, typically every 60 days. If your home has multiple pets or someone with allergies or respiratory conditions, it is advisable to replace the filter every 20–45 days.

Conversely, seldom-used spaces, like vacation homes, can extend this interval to 9–12 months. Essentially, how often air filters are changed hinges on the unique aspects of your living environment and how you use your space.

The Impact of Neglect

Not replacing your HVAC air filter can lead to a host of problems. First and foremost, a clogged filter cannot effectively prevent dust and contaminants from entering the HVAC system. This can strain and damage critical components, such as fan motors and valves, by impeding airflow and forcing the system to consume more energy to function properly. Consequently, a dirty filter not only reduces your system’s efficiency but can also precipitate costly breakdowns.

Moreover, without regular replacement, your air filter will fail to block allergens, pollen, dander, and mold spores effectively. Regularly changing your air filter ensures that your home maintains good indoor air quality while safeguarding the health of its occupants.

Breathe Easy With Pure Climate

Ensuring the air in your home remains clean and healthy is simple but vital. Regularly changing your HVAC air filter is a straightforward measure that can significantly impact your comfort and health. For those seeking professional advice or services to enhance their home’s heating, cooling, and air quality, Pure Climate Heating and Cooling is ready to assist.

Our team of NATE-certified technicians specializes in providing top-notch, affordable HVAC solutions. With an emphasis on quality, reliability, and customer satisfaction, we guarantee our work with extensive warranties. For a comfortable and healthy home environment, consider partnering with us, your trusted HVAC company in Hinsdale.

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