How Often Should I Swap Out My Home Air Filter?

Keeping your home's air clean and healthy is essential, and that means regularly replacing your air filter. The frequency of when you should change it depends on the type of filter you have. In this article, we'll discuss the different types of home air filters and how often they need to be swapped out.

What Kind of Air Filter Do You Have?

The type of air filter you have will determine how often it needs to be changed. The most common types are fiberglass, pleated, and HEPA filters.

Fiberglass Filters

Fiberglass filters are the most basic kind and usually the least expensive option. They are made up of woven fiberglass fibers designed to capture large particles like dust, dirt, and lint. However, they aren't very effective at trapping smaller particles such as pollen, mold spores, or pet dander. Fiberglass filters should be replaced every 30-90 days depending on the amount of dust in your home.

Pleated Filters

Pleated filters are a combination of synthetic and natural materials that are more efficient than fiberglass at trapping smaller particles. They also last longer than fiberglass filters so they should be changed every 90-180 days depending on the amount of dust in your home.

HEPA Filters

High-efficiency particulate air (HEPA) filters are highly effective for removing airborne particles from your home's air. HEPA can trap 99.97% of particles as small as 0.3 microns in size, which makes them ideal for people with allergies or asthma issues. HEPA filters should be switched out every 6-12 months depending on the amount of dust in your house.

Signs That You Need to Change Your Air Filter

In addition to following the recommended guidelines for changing your air filter, there are some signs that may indicate it needs to be replaced sooner. If you notice any one of these signs, it’s likely time to replace your filter:

    Reduced airflow:

    If you notice that your HVAC system is not blowing as much air as usual, it could mean a clogged up filter.

    Higher energy bills:

    A clogged up filter can reduce efficiency in an HVAC system, leading to higher energy bills.

    Strange odors:

    If strange odors come from vents, this could indicate a dirty filter.

    Excessive dust:

    An increase in dust around the house may mean a blocked up filter.

Conclusion

Changing an air filter is important for keeping a healthy environment inside one's home. Depending on what type you have – fiberglass (30-90 days), pleated (90-180 days), or HEPA (6-12 months) – will determine how often it needs replacing. Additionally, if any signs point towards needing an earlier replacement such as reduced airflow or higher energy bills, then do so immediately.