Our daily routine mostly involves shuffling around homes and different places; then we end up reacting to several allergies because of exposure to different environments and the germs that come with it. Since tracing the source of the outcome infection could be difficult, why bother when you can simply get the best air purifier for germs in places where you reside or visit occasionally.

Air conditioning units have been employed to recycle the air in homes and filter harmful particles, but of a truth, it can only filter out large particles, leaving out pollen, dander from pets and germs, unlike the germ mold air purifier. In essence, air conditioning units cannot be compared to the best air purifier for mold and bacteria around.

Top 5 Germ Removing Air Purifiers

1) Alen Breathable Air Purifier

Alen BreatheSmart Classic

Special Features: Powerful coverage, innovative design, Auto-sensing and fully customizable

This is an intuitive, intelligent device, which in auto mode the laser sensors self-adjust to target particles down to a size as small as 0.3 microns. It has a quiet operation, and the biggest size can cover really large rooms of up to 1100 square feet ensuring no part in your whole house is left out.

Alen air purifier’s smart sensor feature automatically adjust to changes in the air quality, which prolongs the filter while saving power. The two most amazing things about this air cleaner are that it does all these while consuming the same power as a 105W light bulb and it comes with a lifetime limited warranty for the USA only.

When it is placed in a high rise building of size 1200 square feet, after only a few days the amount of dust on the furniture diminished and in weeks, it eradicated sneezing and nose congestion while running 24 hours per day.


  • covers very large rooms,
  • true HEPA filter,
  • fully customizable,
  • auto-sensing during operation,
  • energy efficient,
  • quiet operation,
  • intuitive intelligence,
  • lifetime warranty.


  • it is expensive,
  • no carbon filter.

2) AeraMax 300 Large Room Air Purifier

AeraMax 300

Special Features: Fully automatic, Four stage filtration process, large coverage and aerasafe antimicrobial treatment

This device, certified asthma, and allergy friendly by the Asthma and Allergy Foundation of America uses a true HEPA filter with anti-microbial treatment in removing germs, bacterial and other contaminations from the atmosphere with a 99.9% accuracy.

It features an Aera smart mode that detects contaminants automatically and a carbon filter for capturing a pet, cooking and smoking odors.

The unit takes air from two sides and expels from a vent at the top of the front, therefore no issues with placing in a corner or next to a wall. It definitely cuts allergies down to quite a significant level and makes the home more comfortable


  • true HEPA filter,
  • carbon filter,
  • smart operation,
  • certified asthma and allergy friendly


  • Only suitable for small and medium-sized rooms,
  • it is also expensive.

3) Alen T500 HEPA Air Purifier

Alen BreatheSmart Classic

Special Features: Innovative design, whisper quiet and powerful coverage

Another alien product on our list is the T500 HEPA filter that operates 53-watt energy at high speed and 30 watts at a low rate, all in a quiet manner. It captures 95% of airborne particles including dust and a wide array of irritants and toxins that could invoke asthma symptoms and cause lung inflammation.

The carbon filter ensures it also absorbs chemical fumes, smokes, and other odor-causing pollutants. I use it in my bedroom while and sleep and have noticed that I no longer wake up with slight congestion like I used to. I run it about 4 hours on medium and it a great product.

The only thing you would be replacing is the filter and the frequency of the replacement depends on how high you run the fan. This alen is so effective that it took out smell in less than 2 days.


  • whisper quiet operation,
  • innovative design,
  • lifetime warranty for USA and Mexico only


  • Only suitable for small and medium-sized rooms
  • cost of relacing filter is expensive

4) GermGuardian AC4900CA Hepa air purifier

Germ Guardian AC4900CA

Special Features: CAdR rated 101+, true HEPA filter, and works with titanium dioxide to kill airborne

This air purifier is built with a HEPA filter, charcoal filter, and UV-C light technology. The HEPA filter removes micron-sized contaminated particles, the charcoal is used instead of a carbon filter, and it reduces odors in the house from smoke, cooking, and pets, while the UV light technology works with titanium dioxide to remove airborne bacteria, viruses, germs, molds, and spores.

The AC4900CA is also ultra-quiet during operation. When placed in a living room and allowed to run when anyone is home, I noticed a certain change in the air; it feels cleaner, and asthma-like symptoms are greatly diminished. So far, it has done well to perform its job.

It has a dual settings which are the highest and the lowest. Normally, the highest settings will be effective in 12×12 bedroom but you should be ready for a a bit of a loud noise which sound like a box fan, meanwhile, the lowest setting works with a white noise.


  • 3-stage filter operation
  • white noise


  • Only effective in small rooms (150 square feet) only.

5) Germ Guardian AC4825 Air Purifier

Germ Guardian AC4825

Special features: Filter replacement indicator, dual settings and white noise

The Germ Guardian AC4825 is the perfect for allergy sufferers. It starts to improve your indoor quality from the moment it is powered on.  The AC4825 also employs a 3-stage filter; the HEPA filter, carbon filter, and UV-C light technology.

Only one of the filter needs to be replaced every 6-8 months depending on the usage of the device, and it comes with a four pack of the carbon filter to lengthen the filter’s lifespan.

I have had this unit for almost a year now, and it’s still hushed with the fan running strong. It runs for at least 12 hours a day. The black pre-filter only kills odors for about a week, and replacement filters also work for nearly a week too


  • budget friendly,
  • quiet operation,
  • very portable,
  • inexpensive filter replacement


  • Only efficient in small to medium-sized rooms.

Also read: Do air purifier dry out the air?

Do air purifiers remove germs?

Yes, Air purifiers cleanse the air by sucking it through several layers of filters to remove germicidal and other contaminants before recirculating the clean air back into the room. Each layer of air purifier’s filter is designed for different types of pollutants. To my surprise, Air cleaners also remove airborne bacteria if it has a high-quality HEPA filter.

Most of the germs, mold, and bacteria we inhale that causes allergies are surprisingly from places we can hardly think of in our homes. Hence, the need for the best germicidal air purifier but choosing the best Products among the various air cleaners in the market can be a little bit hectic. That is why we have done our research to reveal what you should look out for in the best air purifiers.

Qualities of Best ozone free germicidal air purifier


This is an essential component in an air purifier for bacteria and other germs and not because it gets rid of the germs. As a matter of fact, germs in micron sizes are so small that they can easily pass through the pre-filter, but the pre-filter is still vital because of its ability to remove large sized particles from the air like pet dander and dust particles.

HEPA Filter:

This is of two types; the true HEPA filter and the BioGS HEPA filter. A HEPA filter present in the air purifier by the United States Department of energy standard means that it can capture at least 99.9% of particles as small as 0.3 microns. The BioGS HEPA filter is simply an advanced type of the HEPA filter that is specially designed to reduce the buildup of particles on the filter that degrade it over time. If maintained properly, it can last up between 18 months to 3 years.

Charcoal/ Activated carbon filter:

This is a filter with a large and very porous surface, which gives it the capability to absorb odorous particles and gases. It deals with the smells the germs bring along.

Ion generator/ plasma wave technology:

This technology releases negative ions into the air to clean it. Germs particles like dust and bacterial are positively charged, therefore these negative ions bonds with them making it too heavy for the particles to remain in the air. The significant difference between the ion generator and plasma wave is that in the plasma wave technology the air is filtered in the device unit, but the ion generator releases the ions into the atmosphere, causing the particles to become too heavy to remain in the surrounding.

Recommended Post: Are air purifiers with ionizers safe?


The germ air purifier should be portable enough to be moved to wherever it is needed in the home or office. So it can efficiently serve the whole house.

Operational noise level:

purchasing an air cleaner that operates at minimal noise is undoubtedly the best option you should go for. Noisy products could cause to unease at night during sleep or even go as far as you shut it down.

Our Final Say

The Alen Customizable Air purifier with HEPA-Pure Filter comes out on top as the best air purifier for germs due to its substantial area coverage and efficiency, it also comes with a lifetime warranty.

While the AeraMax 300 Large Room Air Purifier is the more budget-friendly option to go for and can serve you well, although not nearly as good as the Alen Air purifier.

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