If you’re looking for an air purifier or just trying to learn more about them, you’ve probably found yourself wondering, “How long do air purifier filters last?” Since almost all air purifiers require filters to remove contaminants from the air, the life span of these filters is critically important. Here are the basics of what you need to know about air purifier filter life.
 How Do Different Filters Work and Wear Out?
There are various different kinds of air purifier filters, each of which lasts for a different amount of time based on how it removes impurities from the air around you. A HEPA filter, for example, uses thin layers of a porous material to capture small particles in the air. The filter wears out as this material becomes too full to continue capturing more airborne particles.
Carbon filters, on the other hand, work on a similar but slightly different principle. Using chemically activated carbon, these filters capture gaseous impurities, like odors and VOCs, from the air. Like HEPA filters, however, these filters will eventually reach their maximum capacities and no longer be able to remove more gases from your household air.
 So, How Long Do Air Purifier Filters Last?
Air purifier filter life will depend upon a variety of factors, including filter type, size and usage. Many larger HEPA filters, like those in the Amaircare 3000, can last up to 5 years under the right conditions, though 2-3 is more realistic in spaces with larger amounts of particulate matter in the air. For carbon filters, the average lifespan is generally 3-5 years. Be aware, however, that not all units have the same specifications. There are air purifiers that will need more frequent filters changes, so be sure to carefully read the manual for your air purifier to determine its filter life.
 When to Replace Filters
There are several different ways to know it’s time to replace an air purifier filter. Some units, like the Field Controls TRIO, come equipped with an indicator light that will let you know when it’s time for your filter to be changed. If your unit doesn’t have this feature, you can simply keep track of the time since your last change and replace the filter after the recommended interval.
Another option, if you don’t want to keep track of multi-year filter change intervals, is to use the US Air Purifiers filter change calendar tool. Simply enter your air purifier’s information and your email, and you’ll receive an automated email alert when it’s time for you to change your filter.
Air purifier filter life can vary, which is why it’s crucial to know how often you need to change the filter in your unit. Still have questions about air purifiers, filters, or how long the filters in your air purifier last? Feel free to contact us, and we’ll be happy to answer your questions and help you get the replacement filter you need.