Do Air Purifiers Improve Health?

Are you new to air purifiers?

Does a friend or family member have one and you’re wondering “Do air purifiers improve health?”

If so, the information outlined on this is what you’re after.

The short answer is yes, air purifiers can be instrumental in improving your health in multiple systems ranging from your respiratory tract to your cardiovascular system. But how do they do this? We’re going to answer all of this and more below. 

What an Air Purifier Does

Before you understand what your air purifier can do to improve your health, you have to understand how it works.

Basically, an air purifier comes equipped with an internal filtration system, and some models have specialized filters known as HEPA filters. These types of filters are denser than traditional paper filters, and this allows them to trap airborne contaminants.

Once you turn a HEPA air purifier on, it starts to pull the surrounding air in and through the internal filter system. As the air passes through the filter, it cleans out the contaminants and expels clean air back into the room.

An air purifier of that design will continually cycle the air through the filter system as long as you let it run. This removes more and more contaminants over time until the air around you is fresh and clean.

For those of you who like to find the best deals, you’ll want to check out our best inexpensive air purifier guide to see the top three picks money can buy.

Another popular air cleaning technology is an ionic air purifier. This type of machine doesn’t use a paper filter to trap contaminants, but rather sends out negatively charged ions into the air to remove them.

Some ionizers to pull air through a set of fan blades that are positively or negatively charged, and this magnetizes and collects the pollutants. The blades can be wiped clean to remove the stuck on particles and continue filter the air without ever needing a replacement.

How An Air Purifier Improves Your Health

Now that you know how air purifiers work, we’ll talk about how they can improve your health and the conditions they can help with.

The most obvious benefit is by removing contaminants from the air that can irritate your respiratory system. Things like exhaust fumes, dust, pet dander, pollen, and pollution from factories can all contribute to low air quality, and an air purifier removes them quickly and efficiently so you don’t breathe them in.

Several recent studies showed that airborne pollutants can cause problems with your respiratory tract as well as with your cardiovascular tract.

One study in particular linked pollution to an increased risk of carotid artery disease, and this increases your risk of suffering from a stroke (1). A second study linked pollution as being one of the most significant causes of chronic diseases (2). 

Since an air purifier works to remove these irritants, it can reduce your risks of having a cardiovascular event, lessen the severity of your allergies, improve your respiratory issues like asthma or COPD, and possibly extend your longevity by removing carcinogenic toxins from the air.

If that doesn’t motivate you to get an air purifier, nothing will. What’s more is that you don’t have to invest in an expensive machine either. You can buy several cheap air purifiers and put them in the rooms you use the most in your home to get cleaner air quickly and efficiently.

Final Verdict

So, do air purifiers improve health? Yes.

Should I buy an air purifier? Yes.

Your air purifier can be a huge help in improving your overall health by helping several body systems at the same time. All you have to do is buy one or two (or more) and let them run in the rooms that you use the most to get the full health benefits. If you’d like to start small and get an inexpensive air purifier to see how good it can do for you, take a look at our best small air purifier guide to see what’s available.

Finally, another topic that often comes up is how air purifiers relate to humidifiers and vice versus. If you want to know, “Can you use an air purifier and humidifier together?” we have a post that answers that question too.


Journal of The American College of Cardiology
The Lancet