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Best rated air sanitizer – Guide & reviews

Last Updated: 09.12.21


Top Air Sanitizers Reviewed – Buying guide & Comparison for 2021


Time is the most important resource in our age and day, and it cannot be bought which is why we understand that not everyone has enough of it to do proper research about the best air sanitizer. Based on the air sanitizers reviews, consumer reports, and surveys that we studied, we’ve concluded that the product that offers the most features for the price is the GermGuardian AC4825 3-in-1. The true HEPA Filter present in this variant will capture 99.97% of dust and allergies that are as small as 0.3 microns. Household dust, mold spores, plant pollens, and pet dander will all be captured by the filter so that you can enjoy a clean allergen-free air. This unit will also kill any airborne viruses, germs, bacteria and mold spores. If this product is not available for sale, we recommend that you consider the GermGuardian AC5350B Elite as your second option



Comparison Table


The Good
The Bad



A good air sanitizer can make all the difference in the world to your lifestyle, especially if you suffer from allergies or you simply want a safe and healthy environment for your kids and family. To help you pick the right model, we have outlined all the critical points that need to be considered in our buyer’s guide below.

Get an option that can get the job done

When the time comes to choose an air sanitizer, the HEPA air filter is the most common and effective type of filter that can remove 99.97% of particles that are as small as 0.3 microns. With such an option, you can rest assured that the air that you are breathing will only contain particles that won’t affect your health.

Apart from the alternatives that use filters, you can also choose an electronic unit that utilizes negative ions and low-level ozone to remove particles that are as small as 0.01 microns from the area. These particles are much smaller than many airborne pollutants.

More expensive models can remove particles as small as 0.001 microns, and that’s quite impressive. These highly-effective options can remove viruses, atmospheric dust, herbicides, and pesticides from the air.

Fumes and viruses are too small to be captured by an air filtration device. If you want an option that can remove these small particles, you need to go with one that uses an oxidation ions technology.

Such a device will be able to capture tobacco smoke particles, and if you have children and want to keep them safe, purchasing a unit that can remove these toxic fumes is recommended. If you just want to focus on removing the most common allergens, bacteria, and viruses, the HEPA air filters can get the job done. 


Square foot coverage

Purchasing an air sanitizer is not just about keeping the price of the unit low but also about being sure that you get great performance for the money. A low priced unit does not necessarily mean that you’ll get the best value for your money.

You need to consider the square foot coverage that the product you have in mind can offer. This is the reason why lower-priced air cleaners can be more costly when you consider the cost per square foot. Most HEPA air filters are rated to cover around 500 square feet, but that depends from unit to unit.

There’s no point in getting a cheaper unit if it cannot provide the proper coverage to clean your home. If you use a product with a small square foot coverage in a big home, you’ll end up getting a sub-par performance.



Many of the electronic air sanitizers that use both HEPA and carbon-based filters utilize a motor to draw more air through the filter. By design, only the air that passes through the filter gets treated which means that the more powerful the fan is, the more efficient the unit will be.

Unfortunately, this efficiency can come with a drawback in the sense of the amount of noise that the product creates. The good thing is that most devices are equipped with a quiet setting that significantly reduces noise.

If you want to use the sanitizer during the night and you are sensitive to loud noises, you won’t have to wear uncomfortable earplugs, as you can just turn the silent setting on, and get ready to go to sleep right away.




5 Best Air Sanitizers (Reviews) in 2021


If after prospecting the market you are still unsure about which product to choose, the list of top-rated products below will help you decide. These are the models that stood out due to their quality, efficiency, and affordability.



1. Germ Guardian True HEPA Filter Air Purifier AC4825 3-in-1


This unit features a HEPA filter that can capture all the most present allergens such as dust, pet dander, and pollen. To fight germs, just as the newest UV sanitizer wands, this unit uses a UV-C power that helps kill airborne viruses, bacteria, and mold spores.

The airborne germs that the GermGuardian model will exterminate include staph, influenza, and rhinovirus. These are all dangerous germs and for anyone who wants to keep his/her home safe, purchasing this unit is a first and important step towards achieving this goal. This model is designed for medium-sized rooms.

Apart from allergens, germs, and viruses, this unit will also reduce unpleasant odors that can be created by pets, from cooking or from the smoke of a cigarette. You won’t have to worry about the electricity bill with this purchase, as this product is CADR rated 100+ and Certified Energy Efficient.


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2. Germ Guardian True HEPA Filter Air Purifier AC5350B Elite


If you have allergies, you want to fight germs or simply wish to reduce odors, the GermGuardian Elite is a great purchase that is inexpensive and which can give you plenty of rewards by improving the lifestyle of your family. It is 28 inches tall but it manages to remain lightweight enough to make transporting it an easy task.

If you have a baby living in your home, using an efficient sterilizer for baby bottles may not be enough as germs and allergens can exist everywhere. This is where the GermGuardian sanitizer can come in handy as the multiple levels of cleaning that include both HEPA, UV-C, and charcoal will improve the indoor air quality.

You won’t have to worry that your new device will impair your sleeping time as the Elite option can keep running all night due to the ultra-quiet operation that can be turned on with the push of a button.


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3. Pure Enrichment PureZone 3-in-1 True HEPA Air Purifier


The true HEPA filter that this unit comes with can capture 99.975% of the most common allergens such as dust, pollen, smoke, mold spores, pet dander, and any unpleasant household odors. When using your new CPAP machine is not possible, this product will maintain the quality of the air in your home.

The UV-C light will destroy any microorganisms such as germs, viruses, fungi, and bacteria. This is also a compact unit meaning that you will have no difficulty in transporting it with you. You can even use it in your RV together with your quality baby bottle sterilizer for travelling in order to give your family the protection they need.

Using it is also fun and easy since setting it up only takes a few seconds and then you’ll be able to take advantage of all the useful features that this unit comes equipped with. You can also use the whisper-quiet function when you want to use this model during the night while you’re sleeping.


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4. Germ Guardian Pluggable Air Purifier & Sanitizer 


You will enjoy purer, more breathable air in your home when using this air purifier and sanitizer. It deals with unpleasant smells that appear in any household due to cooking, pets, and other activities that release bacteria. The compact design of this model makes it a good option for any room, as it measures only 7 inches in height.

Because it works with UV-C technology, it deals with airborne viruses like a charm, and it must be mentioned that it’s excellent against volatile organic elements, too. The light bulb needs to be replaced yearly, but otherwise, there are no other consumables to worry about.

The only thing you need to do is to plug it in an electric outlet and let it do its job. It is the most efficient when placed in a small room, so it’s great for kitchens, litter rooms, or kids’ rooms. Bacteria and viruses stand no chance.


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5. InvisiClean Claro Air Purifier 


Filtrating the air in your home is necessary since there are so many pollutants that can severely affect its quality. The unit comes with a HEPA filter capable of eliminating dust, pollen, and dander from pets’ coats, with high efficiency.

You can place this unit in a large room and let it work hard at purifying the air. It worth knowing that the model is equipped with a DC motor that can be set for one of the 4 speeds available. Because of how energy-efficient it is, you will not notice any change in your electricity bill.

An interesting thing about this model is that it comes with an air quality monitor that works in real-time. The sensor will detect any changes, and then the motor will increase the fan speed when more purifying power is needed. At the same time, the unit is quiet, so you don’t have to worry about it making any noise when you want to rest.


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Unavailable products


Germ Guardian True HEPA Filter AC4100


Using a powerful disinfectant cleaner is not enough to keep your home tidy as bacteria is also airborne. This where the GermGuardian model comes into play. By using an HEPA filter, this unit is capable of capturing all types of dust and allergens so that you can enjoy a healthy environment.

Aside from trapping the most common allergens, this product will also help you fight germs. The UV-C power will kill airborne bacteria, mold spores, and viruses. This will help you fight the common cold by keeping the virus that causes it away from your home.

The pre-filter/activated carbon is able to capture large dust particles and pet hair. This will protect the HEPA filter from getting clogged and extend its service life and efficiency. The activated carbon will trap household odors as well as harmful VOC’s. As a plus, utilizing this option is easier than ever as you’ll only have two buttons to worry about



AZEUS CADR 210+ True HEPA Filter Air Purifier 


This model uses five layers of true HEPA filter that can get rid of a large number of pollutants and allergens, such as dust, smoke, pollen, and pet hair. It is rated for large purification areas since it can purify a workspace of 380-540 square feet, and it can achieve up to five air changes per hour.

You won’t have to worry about forgetting to replace the filter since the unit will notify you automatically after about 2,000 hours of operation. It also comes with a whisper-quiet sleep mode that will dim the lights so that you can get a restful sleep while the filter will keep working to ensure you continue to breathe fresh air.  

What’s more, this option also uses a UV-C Light Sanitizer + Optional Ionizer that can eliminate dangerous germs from the air. The UV light is on by default, and it has a 20/10 minute working cycle.



Bidook Plasma Air Purifier UV-C Sanitizer Filter Plus Night Light


Are you in the market for a cheap air sanitizer that is also extremely portable and which can be used at home or while you’re travelling? The Bidook alternative is a small device that manages to pack a lot of power. This unit will not produce ozone and abnormal odour, and it will make your family feel more comfortable by keeping the air clean

This model can decompose common allergens such as pollen, formaldehyde, smoke, and other harmful substances that are present in the air. This small device can cover a surface of 86 square feet which makes it ideal to use in small rooms or in an recreational vehicle.

The unique design and technology of this unit will make it so that it can be used in any room since the minimalist design will go well with any type of furniture. The magnet opening and the closing design of the base will allow you to replace the filter membrane easily.



Ioana Moldovan

Ioana’s professional experience in the optics field has helped her understand the value of passing her knowledge forward. Her curious personality helps her gather useful information for her readers and her goal is to make technical information fun and accessible to everyone.

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