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GermGuardian Air Purifier Reviews 2021, Best Models

There are not only bacteria floating in the air but also peculiar smells, dust mites, mold spores, dust pollen, pet dander, and so on. Air purifiers are essential to improve the air quality in any room in your home or workplace. The HEPA filters capture small particles while also using Guardian Technologies’ powerful and safe UV technology to kill bacteria in the air.

We offer 10 different models and sizes of GermGuardian air purifiers to help you reduce airborne bacteria in your home. If you need further assistance in choosing an air purifier that suits your needs, please visit our Air Purifier Buyer’s Guide

GermGuardian Air Purifier Reviews 2021, Best Models

GermGuardian AC4825E Air Purifier with H13 True HEPA Filter

The GermGuardian AC4825E is the most popular GermGuardian air purifier.

The AC4825E version is normally one of the most preferred air cleansers. What is really important is the inclusion of UV-C filters for bacteria and specifications. AC4825E is a tower model designed for a recommended coverage area of approximately 167 square feet. For small and medium air purifiers, it has a good cadr rating. GermGuardian AC4825E passes all air in a 167 square foot room through a HEPA filter every 15 minutes (4 air changes per hour). This resulted in a smoke cadr rating of 108, a pollen cadr rating of 125, and a dust cadr rating of 118.

The Good

Very good at cleaning the air. After placing it in a large room of about 500 square feet with a vaulted ceiling for 1-2 hours, it will filter reduces or eliminate odors in the air.
Very suitable for allergies, environmental and chemical allergies. charcoal filters help chemical allergies or sensitivities. HEPA is partly used for dust and other allergens.
Great value, reusable filter
Doubles as a white noise machine
Compared to others, the price is reasonable.
No need to set up, just use it out of the box.
It looks good and not bulky.

The Not-So-Good

The sound is not loud, but it is not very quiet at high speed. However, for any fan with a higher speed, this can be expected.Settings 2 and 3 may be too loud, and most people cannot sleep. Fortunately, it is really unlikely to need them during sleep time.
Annoying blue light when ultraviolet light is turned on. I do understand and appreciate the safety factor provided by the light, but I will be very happy with the dot indicator next to the power switch.

What Customers Say

I live in a 650 sq ft apartment and this purifier has been perfect for the price. I have a Pomeranian who has breathing problems and sheds a lot. I have asthma and air quality has a greater impact on me than ever before. The pictures speak for themselves. Great little unit. The apartment’s odors were immediately and continually neutralized. The highest settings are a little loud but that’s what this rate point gets you. Luckily, I love the white noise. I only ran it on high for a day or more originally as well as currently I leave it in reduced continuously – and the low setting is essentially silent.

GermGuardian AC4300BPTCA Air Purifier with H13 True HEPA Filter

This air purifier can remove up to 99.97% of harmful bacteria, dust, pollen, pet dander, mold spores and other allergens as small as 0.3 microns.

Antibacterial agents are added to the filter to inhibit the growth of mold, mildew and bacteria that cause odors on the surface of the filter. UV-C light can kill airborne viruses, such as influenza, staphylococcus, rhinovirus, and it can also reduce volatile organic compounds.Can capture allergens while extending the life of the HEPA filter Ultra-quiet mode-Ultra-quiet sleep mode can help you sleep well in the fresh air.

The Good

Very effective to quickly remove smoke in the air, low speed and quiet enough to sleep, ultraviolet light helps to remove cooking odors.
The device has everything needed for an air purifier. There are the best filters (even the best True HEPA and carbon fiber), replacements are quite cheap, and even UVC can be turned on or off).
The structure is sturdy, and the appearance is fashionable and fashionable

The Not-So-Good

There will be a slight whirring sound at high speed, but it does not affect life very much.it is equivalent to a standard box fan.
The UV LED lamp is too bright, plus it is blue, which disturbs sleep very much and cannot be used at night

What Customers Say

I have a semi-finished basement, I changed it to my man’s cave. The wife always said that there was a musty smell in the basement. After confirming that there is no leakage, no groundwater, etc., I purchased an air freshener. That’s no use. So I researched an air purifier and bought this. I am very satisfied with it. I ran on High for a few days with the UV light on. After a few hours, I noticed that the air had become “lighter” and it smelled better. After running at high speed for a few days, the smell completely disappeared. I turned it off, went downstairs, and the smell completely disappeared. Now I may open it every two days. Drive it up high when I’m there, then turn it off. In terms of price, this thing does a good job of cleaning the air.

GermGuardian GG1100W Elite Pluggable UV-C Sanitizer and Deodorizer

GG1000 adopts an easy-to-use and easy-to-maintain design, and may be the most versatile and convenient air purifier in the Gem Guardian model.

It is small enough to fit in a small bag and can be easily inserted into almost any room, but it is more efficient than most small room air purifiers that are more expensive. GG1000 is best suited to eliminate bacteria and other air pollutants in bathrooms and kitchenettes.

The Good

Installation is so simple.
A HEPA filter can help to clean the air, reduce bacteria in the air, and reduce household odors caused by bacteria, pets and cooking.
This 7-inch wall-mounted pluggable sterilizer is perfect for kitchens, trash bin rooms, bathrooms or children’s rooms
Reduce peculiar smell: reduce the peculiar smell produced by pets, smoke, cooking oil fume, etc.
No need to replace the filter: depending on usage, only one replacement filters every 10 to 12 months

The Not-So-Good

It works and looks cool but the fan sound on it is really loud.
Works well in a small area
Elimination of peculiar smell is not very obvious, it takes a long time. Part of the odor will be removed.
You can only replace the UV bulb after 4,000 hours or more
Make sure to blow off the accumulated air in the equipment chamber every one and a half years to improve efficiency

What Customers Say

Love this product! This is the perfect solution for my litter box! I have had an ionizer in the past, but I don’t like the smell it leaves… Obviously fresh air is not my thing, haha. The product can eliminate peculiar smell without leaving any odor. I tried scented plug-ins (not very economical), it can only cover up the smell, but it smells like “shitrus”…not pretty. Even my cat likes it! I like that it is a simple plug-in that does not require a footprint. I bought two, and the other was in the seldom-used living room in front of the house. Now I don’t worry that guests (or myself) will be overcome by the “smell of the day” when they walk into the front door. The fan’s noise is so small that you won’t even notice it. It’s kind of like the hum of your refrigerator, you’re used to it! I highly recommend this product and I am glad to find it!

GermGuardian AC4100 4-in-1 Air Purifier, True HEPA Filter UV-C Light Sanitizer

AC4100 is a compact air purifier placed on the table.

This is the best office air purifier, especially when you (unfortunately) work in a cubicle. GermGuardian AC4100 is designed to cover an area of approximately 78 square feet. If you put it on the table, it will continuously improve the air quality. Special reward: The design of AC4100 is very attractive. Of course, removing dust particles in a large room is not enough.It weighs about 5 pounds and is very portable. All in all, this is a clean air purifier suitable for offices.

The Good

AC4100 air purifier can filter the air in small rooms up to 78 square feet; CADR level: dust (56) pollen (76) and smoke (50)
Equipped with a charcoal filter to reduce common odors from pets, smoking and cooking.
Ideal for desktops and workbenches

The Not-So-Good

It is basically a class 1 white noise machine. Levels 2 and 3 are louder.
For “desktop” devices, I promise you don’t want it to be near your desk unless you like LOUD fan white noise.
Plastic smell.. It has lasted about 3 to 4 nights.

What Customers Say

I live in a 500 square foot apartment in San Diego. This building is more than 100 years old, so I have a mold problem, and it always smells like an “old apartment”. I tried my best to get rid of the odor. I often open the windows and turn on the fan to keep the air circulating, but every time I go home, I still smell that stale smell. I bought this for my room, hoping it will help eliminate the smell and also collect mold spores. I left for a two-week trip and let the purifier run when I left. When I got home, there was a noticeable difference, and the smell was reduced by a ton! I like it so far!

GermGuardian GG1100W Elite Pluggable UV-C Sanitizer and Deodorizer

Pluggable air disinfectants can help to reduce the bacteria in the air and reduce household odors caused by bacteria, pets and cooking.

This 7-inch wall-mounted pluggable sterilizer is perfect for kitchens, trash bin rooms, bathrooms or children’s rooms

The Good

plugs in
low noise level
aesthetically pleasing, does the job in a small room
It has a blue germicidal lamp, which can double as a night light.
This air purifier is very attractive and reduces odor

The Not-So-Good

Keep the air fresh. Not super, but the fan helps to move the air.
It’s louder than expected, it sounds like a portable fan-not particularly loud

What Customers Say

I admit that I doubt whether this will really have any effect on the smell of the trash can. To our surprise and happiness, it works. We have a litter box in the closet in the hall. There is a socket in the closet, and this is where we put this light. If you are close to it, you can hear the hum of the motor, but it is not part of the house where we spend a lot of time, so this is not a big problem for us at all-if you are considering plugging it into the kitchen or home In the middle of the activity room, I find this annoying. If this helps provide context, it must be lower than the low volume on a white noise machine. Anyway, we are regular cleaners of the trash bin, but it still seems to always smell bad. Within a few hours of inserting this thing…there has been a difference. There is no smell. After a week or two-there is still no smell. We asked people to come over and ask them, and they agreed-there was no smell. I highly recommend this device!

Germ Guardian True HEPA Filter Air Purifier with UV Light Sanitizer, AC5350B

AC5350B is a stylish, space-saving air purifier that is often ranked as one of the best GermGuardian air purifiers.

With its 4-stage air purification process, the device can ensure almost 99% cleaning efficiency of bacteria and dirt. However, it strongly relies on HEPA and UV-C light technology, which means that in the long run, you will have to perform some maintenance services. The air purifier has the following advantages. The use of a HEPA filter ensures that all visible or invisible dirt particles can be effectively cleaned in just a few hours. On the other hand, the combination of UV-C light technology gives you confidence that you will almost never be affected by viruses, bacteria and organelles that cause common diseases. Use activated carbon filters to eliminate odors and common household gas types. After all, charcoal or activated carbon is the best tool to eliminate smoke and odors, because it is essentially non-porous, so it can bind to tiny gas molecules. The combined use of multiple cleaning systems greatly improves the efficiency of the equipment. After all, it has a cadr rating of 100+ for removing dirt, smoke, and dust pollen.

The Good

Lightweight and beautiful-with the appearance and compactness of its entertainment equipment, you can easily use this equipment to decorate your office or living room because it can remove dirt and pollen for you.
Equipped with 4 packs of carbon filters, longer service life
Simple to use and easy to maintain
Thanks to the additional carbon filter, it requires almost no maintenance
Suitable for medium-sized rooms, preferably 234 square feet.

The Not-So-Good

The design of the purifier is to suck in dirty air from the back and blow it out from both sides. However, due to poor vent design, it feels like the purified air is actually flowing backwards.Now suppose I want to put the purifier in the corner of the room, it will only circulate the air in that small corner!
The HEPA filter needs to be replaced regularly, perhaps every eight months.
Additional function
It has five speed settings, some of which make the device run silently. However, the faster the speed setting, the louder the noise of the device.

What Customers Say

Great product, I have 2 internal dogs, 4 children, and there is a lot of dirt in the backyard. Our 2 year old is allergic to her skin (scabby). Sometimes when working in our home gym, when I breathe heavily, I can see dust particles floating in the air, and then besides feeling bad, I think my mood is worse. We have a smaller version, the price is about half the price, which is good, but too small for the outside of the bedroom. This incident changed our children’s allergies. The air not only felt better, but also smelled clean.

GermGuardian AC5900WCA Air Purifier with H13 True HEPA Filter

This air purifier can reduce up to 99.97% of harmful bacteria, dust, pollen, pet dander, mold spores, and other air allergens as small as 0.3 microns. It can also be used as a white noise machine at night.

VERIFIED AHAM certified products have the ability to clean room tobacco smoke, dust pollen. CADR grades smoke (235), dust (239), pollen (237). 3 year warranty GermGuardian guarantees you.

The Good

UV-C lamp and HEPA filter
No distraction/bright lighting
Low ozone emissions certified by the California Air Resources Board
High maximum CADR (flow rate)
The air is exhausted from the top, making it better mixed and closer to the wall.

The Not-So-Good

Only 3 fan speeds (no automatic setting)
Very loud in medium and high fan settings
No smart functions (e.g. pollution meter, Wifi, night mode)
Non-washable pre-filter
Failed to pass UL2998 zero ozone emission certification

What Customers Say

I like three fan settings. If you don’t want to listen, the first one is very quiet. The second one is very soft. I usually use that one because kids love it. The third very smooth white noise I used during my nap. Several children did not sleep during the nap time, but the sound quickly knocked them down! I put it under the changing table where the diaper trash is. I like that it completely eliminates the traces of diaper smell. All I have to do is to insert it. Very satisfied with the purchase.

Germ Guardian True HEPA Filter Air Purifier

Breathe fresh and clean air.

This powerful GermGuardian air purifier filters out odors and traps allergens through a 360° True HEPA filter, providing fresh and fresh air to your home.The pollution level of indoor air quality may be 2-5 times the outdoor level, which is why hepa air purifiers are essential for regulating the indoor air quality of your home. Our GermGuardian air purifiers with true HEPA filters are designed to improve the air quality in your home by capturing small particles in the air, such as odors, mold, and pollen.

The Good

This is a good small air purifier with three different speeds that can help filter out allergies, pollen, smoke and dust (among other things).
Great unit. We use it in our 18×15 office. It is very quiet at low speeds and not even that loud at high speeds. At high places, it can indeed remove the peculiar smell in the rom, especially the peculiar smell during cooking. The cabinet is easy to open, and it is easy to replace the filter.

The Not-So-Good

The filter is expensive due to its small size and needs to be replaced every two months.
Need to clean it often
Everyone has different perceptions of noise. When running at high speed, the sound is louder

What Customers Say

As a mother of 3 children and two dogs, my husband and I have always wanted to ensure that our indoor air quality is good. We learned from a friend that the air purifier produced by Germ Guardian is very good. When looking at all their options, we knew we needed HEPA filtering. There is also an air purifier, which can also eliminate odors. There is only a small space in our home for it-we found this air purifier to be very suitable. The size is right and still has all the functions we hope to improve the air quality of the home. Easy-to-use controls are available out of the box. After several nights of running, we have noticed that the air around our house has improved. Highly recommend and completely satisfied!

Germ Guardian Air Purifier, High CADR True HEPA Filter

For larger rooms, GermGuardian AC5900W is more suitable than AC4825E.

This is a large room GermGuardian purifier similar to a console. The recommended coverage area is 338 square feet.
For GermGuardian air purifiers, the cadr rating alone is amazing. Each item—the cadr rating for smoke, pollen, and dust—crossed the 200 barrier. That just means that the HEPA filter is doing what it is supposed to do; removing more than 99.97% of the smallest particles as small as 0.3 microns.

The Good

Best large room GermGuardian 4 in 1 air purifier, recommended coverage area is 338 square feet
Equipped with sterilizing UV-C filter and excellent HEPA filter (with 200+ CADR grade)
Very cheap sterilization large room air purifier (especially compared with other brands)

The Not-So-Good

It’s quite wide (nearly 10 inches), which fits the room better
HEPA filter needs to be replaced every 6-8 months
The price is higher than most GermGuardian air purifiers
Weighs 20.7 pounds, so it’s harder to move

What Customers Say

I received my AC9200WCA a few days ago and I have fallen in love with it! ! I have tried several air purifiers at home, and this is the most powerful device I have ever experienced. I live in an old house with carpet, so the bedroom upstairs starts to feel (and smell) musty; I need a quick solution to combat mold growth and my family’s seasonal allergies and my son’s asthma. One night with this device, the air in the room is completely different-more breathable, lighter, fresher and cleaner. The musty smell is completely unnoticeable. It’s surprisingly quiet in size and creating powerful, so you don’t need to run 24-7 hours uninterruptedly to feel the significant difference in air quality. I would recommend this air purifier to anyone-it is worth every penny! !

Germ Guardian Table-Top Air Purifier & Sanitizer

GermGuardian GG3000B air disinfectant and deodorant can kill bacteria and viruses, and filter odors through UV-C light to provide your home with fresh and fresh air.

With the compact desktop design, you can easily get cleaner air in any room that feels stuffy or has an unpleasant smell. Designed for small rooms and offices. GermGuardian provides you with a guarantee. In addition to the purchase, the US technical support team also provides a 1-year limited warranty. Voltage-Plug into a 120V AC power outlet.

The Good

It seems to work well, the air smells fresher after about an hour
Run quietly, only the fan emits a slight buzzing sound, which drives the air flow
Classic and modern appearance

The Not-So-Good

There is a slight ozone smell near the equipment
Best effect in confined spaces

What Customers Say

After the birth of the first child, we decided to buy an air purifier for our apartment. What a difference this germ guardian made. It’s so quiet! However, all common household smells have disappeared. And I believe we are healthier because it uses TRUE HEPA filter and UV-C light technology to purify the air. No more dust and allergens. Say goodbye to bacteria, viruses and germs in the air. Thank you bacteria guard. You are the best!

Frequently Asked Questions about GermGuardian Air Purifier

Is GermGuardian a good air purifier?

As a classic air purifier, GermGuardian is not the best brand. For example, Blueair and Coway air purifiers have higher cadr ratings.

However, GermGuardian has a feature that most air purifier brands cannot provide: UV-C filters. According to reports, UV-C light has a bactericidal effect, and the purpose of using this GermGuardian filter is to eliminate bacteria. Namely bacteria and certain viruses.

In this sense, GermGuardian has indeed created a pretty good air purifier.

Can the GermGuardian filter be washed with water?

GermGuardian filters are not washable. Most of the filters in the air purifier (including those used by GermGuardian equipment) cannot be cleaned.

For example, it is well known that true HEPA filters are not washable and need to be replaced regularly once, twice, or even three times a year.

However, the main GermGuardian UV-C filter does not need to be cleaned. This is a permanent filter. This means that you do not have to incur additional costs for replacing the filter, which is always an advantage.

After reading the GermGuardian air purifier reviews above, the only other step you should probably do is to re-evaluate the air purification needs of your home and decide which model is best for you. After all, there may not be other models of air purifiers that have as efficient air purification systems as those made by GermGuardian. These devices ensure that all types of air pollutants are properly treated, regardless of their size or notoriety.