(Last Updated On: May 8, 2023)

The best air purifiers on the market that specialize in defeating the spread of bacteria and microorganisms are those that feature a HEPA filtering system to clean the air. If you’re not sure where to start, not to worry: we’ve done the work for you with a selection of our four top choices for antibacterial air purifiers that address germs and other concerns.

Here is our list of the air purifiers we consider to be best suited for the job of removing bacteria, viruses, and germs from the air in your home.


Alen BreatheSmart 75i Air Purifier

Alen Paralda Air Purifier

Alen T500 Tower Air Purifier with HEPA-Silver Filter

Alen BreatheSmart 45i Air Purifier

Price $749.00 $299.00 $214.00 $429.00
Max Coverage 1300 SqFt 500 SqFt 500 SqFt 800 SqFt
Expert Review When used with a HEPA-Fresh filter, the Alen BreatheSmart 75i is a powerful companion in the fight against germs. The Alen BreatheSmart 75i removes up to 99.97% of airborne allergens, and the filter’s True HEPA technology offers antibacterial filter protection. The activated carbon in the filter also provides odor control. Alen’s antibacterial HEPA-Silver threads are woven into the Alen Paralda’s HEPA-style filter material, protecting the filter from harmful bacteria and microbe growth. The Paralda’s ozone-safe Ionizer complements the HEPA style filter by charging particles in the air, causing them to stick together and become more easily captured. The result is an air purifier that can rid the air of many harmful microorganisms and bacteria. Looking for a smaller, unobtrusive unit that can still pack a powerful punch when it comes to filtering germs? Then the Alen T500 is the air purifier for you. The HEPA silver filter contains the same powerful antibacterial filter protection as the BreatheSmart unit, but at about half the size, the Alen T500 is a more versatile and portable unit. This air purifier removes 95% of particles greater than 0.3 microns, making it a great way to tackle airborne allergens, too. If you don’t enjoy the “pink noise” an air purifier can make on its higher settings, the Alen BreatheSmart 45i is an excellent choice. This quiet, sleek air purifier captures up to 99% of airborne particles. Pair the Alen BreatheSmart 45i with the HEPA-Fresh filter for reliable antibacterial protection.
Particles Removed 99.97% 99% 95% 99%
Warranty Forever Guarantee

Forever Guarantee

Forever Guarantee

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How Do Air Purifiers Help?

Have you ever wondered why people get sick more often during the winter? While there are a number of factors, one thing that certainly doesn’t help is the amount of time you spend indoors. As the home becomes contaminated with microscopic bacteria and microorganisms, its air will simply re-circulate throughout the home. In order to help eliminate these microorganisms, air purifiers can be run inside the home, trapping many types of bacteria and removing harmful particulates from the air.

Choosing The Best Air Purifier for Germs

The best air purifiers for bacteria and viruses contain high-performance HEPA filters. Regardless of any other technologies in your air purifier, a HEPA filter is essential for capturing the microscopic sized particles such as germs and bacteria. Very few air purifiers are rated to remove viruses sized particles, but this is usually not a concern as most viruses do not float freely within the air. They tend to be attached or contained within larger sized particles such as moisture when someone sneezes. An air purifier with a HEPA filter will still be able to capture these.

Antibacterial Additives are Recommended But Not Required

We recommend air purifiers that also have an antibacterial additive in the filters, which is why our top 4 units are all from Alen Air Purifiers. Alen adds an antibacterial silver ion additive to their filter media which helps kill captured bacteria, mold, and germs. HEPA filters from other manufacturers will also capture these particles, but it is possible for germs and bacteria to multiply within the filter if an antibacterial agent is not present.

What About UV Light and UV Air Purifiers?

Many people looking to protect against germs and viruses often turn to UV lights and air purifiers with UV. Ultra Violet (UV) light has the ability to sterilize surfaces and is very effective at killing bacteria and germs when it is used properly. We at airpurifiers.com do not recommend air purifiers with UV lights because we rarely see this technology implemented in an effective manner.

While UV lights can kill most bacteria within 30 seconds, there is not enough exposure time for the bacteria to be killed if it zooms past the UV light in a fraction of a second. And once the bacteria is embedded deep within your HEPA filter, the UV light does not always have the ability to shine directly on it, so it can still find safe spots to reproduce in areas of your filter that are not exposed to the UV light. This is why we simply recommend antibacterial filters for killing germs. Our experience shows that these are significantly more effective.

Be Proactive to Prevent Sickness

Read more about the capabilities and limitations of air purifiers for germs, bacteria, and viruses as well as supplemental steps you can take to stay healthy.