If you have recently purchased the best air purifier for the first time, you may be wondering how to know if your air purifier is working. Don’t worry. That’s where we come in. Keep reading to find out.

KEY TAKEAWAYS:

  • You can check to see if your air purifier is working by placing your ear to the input fan area and the output fan area. If you feel the air, then it is working.
  • Checking on the filter is also a good idea, replacing it if necessary.
  • HEPA filters need to be replaced once every six months to a year, while activated carbon and electrostatic filters can be cleaned once every month.

How Air Purifiers Do Their Job

To understand if your air purifier is working correctly, it can be helpful to know how air purifiers work in the first place. Filter-based air purifiers use fans to draw in air, where they are run through a series of filters before being put back into your living area. Ionic air purifiers release negatively charged ions into the atmosphere that bond with pollutants, weighing them down and dragging them to the ground. UV air purifiers blast air particles with concentrated beams of ultraviolet light, neutralizing them. You can learn more about how air filters work at home by reading this article.

Insider Tip

Filter-based air purifiers use fans to draw in air, where they are run through a series of filters before being put back into your living area.

How to Check if Your Air Purifier is Working

There are some tried and true steps to take in order to suss out if your air purifier is working. Here are just a few.

Test the Airflow

The easiest and quickest way to check on your air purifier is simply to test the airflow. You can do this by checking out the input fans and output fans inside of the air purifier. Place your ear to the input fan. Does it sound like and feel like the air is being drawn in? If so, great. Now, place your ear to the output fan area. Do you feel plenty of air being expunged? If you said yes to both of these questions, it is highly likely that your air purifier is working. The fans pull in and expunge air, so if they are doing their job it is likely the air purifier is also doing its job.

Check the Air Filters

Next, you will want to check the air filters. If the fans are operating efficiently but the air filter is clogged, your air purifier will not actually be doing anything. Check the air filters by removing them according to the manufacturer’s instructions. How do they look? If they look relatively clean, then you should be good to go. Another way to tell is to check the “change filter” indicator light. If it is illuminated, you will likely have to change or clean the filters. HEPA filters need to be replaced every six months to one year. You should dispose the air filter or purifier when it is not working.

Insider Tip

The fans pull in and expunge air, so if they are doing their job it is likely the air purifier is also doing its job.

F.A.Q.

Someone in my household has a pet allergy. How can air purifiers help, and are they an effective solution?

Air purifiers can certainly help alleviate symptoms related to a pet allergy, but the results will differ depending on the severity of the allergy, the amount of pet dander in your home, and the overall power of the air purifier.


Do air purifiers help with smell? Do air purifiers remove smells?

Air purifiers are fantastic at eliminating and reducing smells, particularly HEPA and activated carbon air purifiers. You may need to run the purifier continuously for a day or so to see results.


Are air purifiers good for asthma?

Air purifiers can help minimize asthma symptoms for some, but may not help for others. Feel free to experiment.



STAT: According to the US Environmental Protection Agency and CDC, “the levels of indoor air pollutants are often 2-5 times higher than outdoor levels and, in some cases, these levels can exceed 100 times that of outdoor levels of the same pollutants.” (source)

Lawrence Bonk

Lawrence Bonk is a copywriter with a decade of experience in the tech space, with columns appearing in Engadget, Huffington Post and CBS, among others. He has a cat named Cinnamon.

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