Are Air Purifiers Really Effective against COVID-19

air purifier

Now, we here at Mainline Heating & Air have already talked about how improving indoor air quality can do wonders when it comes to allergy relief, but there’s more to it than just that. In fact, improving air quality may even protect you from contracting the COVID-19 virus. Now, considering how serious of an issue this is, it makes sense to look further into this and be more thorough when it comes to discussing this subject.

This is why we thought it would be useful to discuss how air purifiers can protect you from COVID-19. If you want to know more about this, read on as we discuss if air purifiers are really effective against COVID-19:

How COVID-19 Spreads

To fully understand this issue, we first have to talk about how the virus spreads. According to the World Health Organization, the virus spreads through small liquid particles from an infected person’s mouth or nose. These particles range from larger respiratory droplets to smaller aerosols. 

However, people often focus on liquid particles, but aerosols are also a serious issue that needs to be addressed. In fact, the Centers for Disease Control have also noted that the virus is airborne as the aerosols can linger in the air for minutes to hours. They can even travel farther than six feet, which puts anyone in an indoor space at risk of contracting the virus.

How Air Purifiers Can Help

Given how the virus is airborne, it makes sense to think that air purifiers can help protect individuals from contracting the virus. So, is this really the case? Well, the answer to this question is rather complicated than you might expect.

While experts have yet to test any air purifiers against the virus, the high-efficiency particulate air (HEPA) filters in most modern air purifiers should (in theory) be able to capture most of the particles in the air. These filters are effective against particles that are as small as 0.3 microns, which is significantly smaller than any of the COVID-19 airborne pathogens. This can make air purifiers useful when it comes to protecting individuals indoors, especially if they live with someone who has contracted the virus.

Are Air Purifiers An Effective Form of Protection?

Given all the information listed above, it would be irresponsible to say that air purifiers alone can protect individuals from the virus. With that being said, the Environmental Protection Agency details that using air purifiers can be helpful when used with other best practices recommended by the Center for Disease Control. And considering that it pays to do all you can to protect yourself from COVID-19, then an air purifier is definitely worth getting.

Now, this doesn’t mean that you should just get any air purifier on the market. To be sure that it offers the most protection possible, you must be sure to get an air purifier that has a HEPA filter. Air purifiers without these filters will do close to nothing against the virus, as only HEPA filters can capture particles small enough to protect you from the virus.  


Hopefully, this article has provided you with valuable information regarding air purifiers and COVID-19. In the end, you’ll want to do all you can to protect yourself and your loved ones from the virus. Remember, the air purifier alone won’t be able to keep you safe from COVID-19 because you also need to follow the best safety practices to ensure that you are away from harm at all times.

If you are looking for quality products or air conditioning services in Alabaster, AL, Mainline Heating & Air have got you covered. Our quality products include air conditioners, heat pumps, gas furnaces, air handlers, package units, home generators, tankless hot water heaters, humidifiers, filtering systems, and dehumidifiers. For more information on our installations or repairs, check out the rest of our website today!

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