Do Air Purifiers Kill Viruses Including Coronavirus COVID-19?

Nowadays, many famous air purifier manufacturers are claiming to filter out harmful viruses and bacteria including the Corona Virus or COVID-19. However; it’s not recommended to trust blindly on these claims without doing proper research on this topic. Remember, it’s a fact that many air purifiers can trap viruses in the air but they do not kill them. Moreover; the viruses can be only trapped by the filters if they are in the air otherwise it’s almost impossible for an air purifier to kill viruses.

If you are seeking a short and precise answer to this question, then you will be shocked to know that air purifiers only kill or trap viruses to a limited degree. Due to their limited filtration system, air purifiers can only trap a small number of viruses and bacteria present in the air. However; you should always follow the proper safety precautions and SOPs to protect yourself and your family against harmful viruses and bacteria. In this article, we will discuss virus killing air purifiers with logical facts and scientific evidence.

Types of Air Purifiers

Most of the air purifiers available today on the market are divided into two basic categories including sanitizers and filters.

Filters work in a unique way to trap the harmful particles of bacteria and viruses present in the air. However; they only trap the viruses and bacteria without killing them. On the other hand, sanitizers are used specifically to kill viruses and bacteria. This form of method is not recommended most of the time as a high concentration of sanitizers is also harmful as it can make you sick.

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Do HEPA Filters Kill Viruses?

The term HEPA or also known as High-Efficiency Particulate Air is used for those specific types of filters that can easily filter small particles up to 0.3 microns. As we all know that most of the common viruses have a diameter of 0.02 micros, so it’s a very challenging job for HEPA filters to trap these deadly viruses such as COVID 19. Moreover; if we specifically talk about HEPA Filters COVID 19, the diameter of coronavirus is around 0.1 microns. A HEPA Filter system can trap only those specific particles of COVID 19 that come under this range.

Safety Precautions of HEPA Filters and COVID 19

Remember, even if the HEPA filters successfully trap harmful viruses and bacteria such as COVID 19, but still you have to follow some particular safety precautions for your additional safety. As we have also discussed earlier, the HEPA filters are only capable of trapping the viruses, however; the virus will remain alive for few days but will more likely die in the filters themselves. But in the meantime, if you are changing the filters, you must follow proper safety precautions such as masks and gloves as the virus may be still alive on the filters.

Are Air Purifiers Safe To Use?

Yes, Most of the air purifiers are completely safe and healthy to use in your house. However; some air purifiers can cause an increase in the ozone levels which might cause some less severe symptoms such as throat irritation, coughing, shortness of breath, and several other health issues. It’s always recommended to use reliable and trusted air purifiers in your house without any risk of side effects.


We hope our in-depth article about air purifiers and COVID 19 will provide you most important information on this topic. We have tried our utmost to explain specific information related to air purifiers for covid and other viruses or bacteria. However; if you have any questions in your mind, don’t hesitate to comment below. You can also contact us anytime for relevant suggestions about the best air purifiers.

About Maria A. Davis

Hi, I am Maria A. Davis and I am a loving mother and a dedicated reviewer for I tried and tested a number of air purifiers and humidifiers on the market to improve indoor air quality. I created this guide from my knowledge and personal experience so you can improve the air quality in your home and office.

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