What Does a HEPA Air Purifier Do? How Can it Help?

If you’re reading this article then you’ve most likely heard of air purifiers before, and you may even have one or two in your own home.

But, do you know what a HEPA filter is? Or, what does a HEPA air purifier do?

If you’re curious, this post is for you. We’re going to answer these questions next. 

Understanding What a HEPA Filter Is

You have traditional air filters, and you have HEPA filters. HEPA filters feature denser fibers, and they have to hold up to more strict standards than a traditional filter. And, if it has a “True” HEPA stamp, then it is required to safely and efficiently trap at least 99.97 percent of contaminants down to 0.3 microns in size that happen to flow through it.

It the air purifier doesn’t do this, it’s not qualified to be a True HEPA filter air purifier. 

HEPA filters are very popular because of this efficiency, and more companies are adding them to their products. This includes air purifiers, ventilation systems, heating and cooling systems, vacuums, and more. Take a look at our guide with the best air purifiers that include HEPA filters if you want to see what is available.

People are also starting to prefer HEPA filters to traditional filters because they work so well. If you buy a product that doesn’t include one, you can often upgrade the air filter to a HEPA version if it is available.

What Makes a HEPA Air Purifier Different?

Different style air purifiers target and eliminate different contaminants. HEPA air purifiers accomplish this as well, but they target and trap a broader range of pollutants.

For example, traditional filters can catch large particles like pollen, pet hair, and dust, however, the smaller particles slip through because the filter isn’t dense enough to screen them. 

With a HEPA filter, the fibers are so dense that it effectively screens and traps dust, pet dander, allergens, mold spores, bacteria, and more. And if it has the “True HEPA” stamp, then it can also catch the smaller particles ranging in size down to the 0.3 microns. Only a True HEPA filter can claim to catch particles this small, and this is why you pay a little more for a HEPA air purifier of this type. 

HEPA air purifiers come with greater peace of mind because you know that your air purifier is actively improving your indoor air quality by trapping both large and small pollution particles. This is why we only recommend HEPA filters on our best desktop air purifier list.

You can also find HEPA air purifiers with an activated carbon filter built in. This filter helps to neutralize many odor-causing pollutants that may pass through it. You’ll get a better overall quality of air inside your home if you look for this combination of filters when selecting a device for your home.

Now, if you’re wondering how do I choose an air purifier, we’ve got a short guide to help you figure that out.

Now that you know the answer to, “What does a HEPA air purifier do?” you can decide if you need one. If you’re concerned about your indoor air quality, you have trouble sleeping, respiratory issues, allergies, or there are odors that you just can’t get rid of, a HEPA air purifier can help solve all of these problems. To find out more, take a look at our post “Are air purifiers good for you?”