Air purifiers can be an effective way to relieve the symptoms of asthma. However, there are some important factors to consider to manage your expectations.

Do Air Purifiers Prevent Asthma?

While air purifiers have been found to be great for easing asthmatic symptoms, the evidence of them being able to prevent the issue is a little murky. 

Air purifiers work to reduce the amount of pollutant particles in the air that can make asthma worse. Some people have noticed that their condition improves greatly. Others find that the difference isn’t as significant as they were hoping for.

Where to Place Air Purifiers for Asthma 

We recommend that you keep air purifiers in the bedroom for asthmatics. This is because the bedroom is the place where you spend hours in one place while sleeping.

Therefore, you will want to minimize the amount of pollutant particles in the air for the room where a lot of your time is being spent. 

What Type of an Air Purifier is Good for Asthmatics?

People with asthma will want to look at the different kinds of air purifiers that are available to ensure they choose the one that’s best for their needs. 

HEPA filters are among the most commonly sought out air purifiers among asthmatics. HEPA refers to High-Efficiency Particulate Air

These filters work to remove microscopic particles from the air that can worsen an asthmatic’s condition.

Can Air Purifiers Make Asthma Worse?

There are actually some cases where asthmatics have found that their condition becomes worse after using an air purifier. 

This is the case with air purifiers that use ionizing features. They send out negatively charged ions that attach themselves to airborne pollutant particles and bring them lower to the ground. 

It’s effective at removing odor-causing particles, but it creates ozone emissions. 

Some people with asthma are more susceptible to being negatively affected by breathing in ozone emissions. These gases have been found to cause irritation to the respiratory system and lungs. 

Therefore, asthmatics may want to avoid ionic air purifiers that produce too much ozone gas.


If you or someone in your home has asthma, you’ll want to be sure that you use the right kind of air purifier. As you now know, the ones that produce ozone emissions can make asthma worse. 

This post isn’t advice from a healthcare professional. Instead, we focus on giving tips on how to improve the quality of your air, which can help alleviate the symptoms of asthma.