GermGuardian AC9200WCA High CADR Air Purifier – Review

The GermGuardian AC9200WCA is one of the top air purifiers from the Guardian Technologies company.

GermGuardian produces air purifiers and other equipment for fresh air for many years. We can say that they are one of the leaders in this field of business. They created many types of air purifiers, some of them are for small rooms such as the GermGuardian AC4200W, and some of them are powerful to purify even the most prominent room.

GermGuardian AC9200WCA 3-in-1 Large Room Air Purifier

The GermGuardian AC9200WCA can handle all the places up to 335 square feet. This purifying power is astonishing. Even the large rooms like a living room now can have fresh, clean air with the use of GermGuardian AC9200WCA.

The GermGuardian AC9200WCA Specifications

Below is a complete list of important specifications and features included on the GermGuardian AC9200WCA Air Purifier:

Manufacturer Guardian Technologies
Model AC9200WCA
Dimensions 9.75 x 17 x 27 inches
Filters Pre-filter and Charcoal Filter, True HEPA Filter, Activated Carbon Filter and UV-C Light
UV-C Yes
Coverage 335 sq. ft.
CADR Dust 216, Pollen 265, and Smoke 216
Warranty 3-year
User manual PDF

GermGuardian AC9200WCA Review

q? encoding=UTF8&ASIN=B0177GW9Z8&Format= SL250 &ID=AsinImage&MarketPlace=US&ServiceVersion=20070822&WS=1&tag=apfpi 20&language=en USGermGuardian AC9200WCA 3-in-1 Large Room Air Purifier

Feature Info
Captures Allergens True HEPA captures 99.97% of Pollen, Dust Mites, Pet Dander and Mold.
Fights Germs UV-C Power kills airborne Bacteria, Viruses and Mold Spores.
Reduces Odors Charcoal filter Reduces common odors from Pets, Smoking and Cooking.

AC9200WCA Design

Without a doubt, we need to talk about design first. The design of this air purifier is futuristic. Whoever contributed this design had a future in its mind.

It weighs only 20.65 pounds, which is not that much for such a powerful device. Dimensions are also very small for such a high-performance unit.

Without any kind of problems, you will be able to place this amazing air purifier in any room in your house. Even in the already mentioned living room. Some folks can have large living rooms, but this is not the problem for AC9200WCA because even do it is small it has the power to filter the big rooms.

Filtration System


This air purifier just as many other high-quality air purifiers has pre-filters. Pre-filters’ primary job is to remove big pollutants like hair and big airborne particles. Pre-filtration helps with the rest of the stages. Not only this way air purifier will work at maximum performance, but it will also save expensive filters from early replacements.

True HEPA Filter

True HEPA Filter is the second stage, and we can say that this air purifier uses a True HEPA filter with the ability to remove 99.97% airborne particles. That includes allergens, dust, mold, pollen, pet dander, and other small particles. With such a high-performance HEPA filter you can be sure that your allergies will not be triggered.

Because of that, this air purifier is ideal for people who suffer from allergic reactions to small particles, pollen, mold, dust, or other allergens that can be filtered from the air.

I also need to mention that this air purifier is perfect for little kids. At a young age kids have all kinds of respiratory problems, so why not help them by using an air purifier and reduce such respiratory problems to the minimum?

Activated Carbon Filter

An activated carbon filter comes after True HEPA filter and all nasty things removed from the air. But the job of the carbon filter is totally different. Carbon filters are not removing particles; they are eliminating odors. Bad smells, odor, kitchen smoke, or even cigarette smoke can be removed by the activated carbon filter. The larger the size of the activated carbon filter the faster it will remove bad smells.

Because of its small design AC9200WCA is not the best choice if you primarily want to eliminate bad odors. Don’t get me wrong, it will still remove bad smells, smoke, and other nasty air pollutants that trigger our nose, but its efficiency will be limited because it is a small device. For fast removal of bad odors, you should look at the size of the air purifier, the bigger the size, the bigger the carbon filter.


In case something went through the first three stages, the fourth stage is the most powerful. UV-C light is capable of killing germs, viruses, and bacteria. I don’t know the power of these removals, but if they claim that viruses can be killed, then it is not a bad idea to use this air purifier in the cold times. When the cold weather comes, people get inside, and germs, viruses, or even bacteria can be spread among them. In such cases, AC9200WCA can be very useful.


The last stage is the ionization process. Many people don’t like this way of air filtration because there is a possibility to produce ozone at high levels that may become hazardous to people. But GermGuardian is a well-known company, and I am sure they have tested and measured their ionization process to the last detail.

That experience means that even if you turn the ionization process on, you can be safe from not creating ozone. Generating negative ions is actually a very good way to make a solid air purifier even better at purifying the air.

The ionization process makes small particles bigger and heavier which then get caught in the HEPA filter much easy. In this way, some particles that can even go through the HEPA filter may be caught because of the ionization process.

GermGuardian AC9200WCA Review of Options

On the touch control panel, you can choose whatever options you wish to run. You can choose from 3 different fan speeds. The speed option will also make sure the room gets cleaned faster or slower depending on the speed option you choose.

UV-C light can be turned on or off. Some people don’t like UV-C turned on when they are in the room. You can turn off the ionization process if you like. From fancy options, this air purifier has Ultra Quiet mode that is ideal for the bedroom when you want fresh air but also a quiet night.

Filter change indicator is extremely useful, and you will not need to bother with filters, all you need to do is check the indicator, and if it is saying to change filters, then you change it.

The 6-hour timer means that the air purifier will work for 6 hours and then it will shut down. This is the ideal mode that saves money and energy but at the same time keeps the air in the room clean.

GermGuardian AC9200WCA Performance

GermGuardian air purifiers are well known for high performance. The same case is with the AC9200WCA model. This little GermGuardian air purifier is capable of high-performance CADR ratings. For smoke, CADR is 216, dust 216, and pollen 265. These numbers are measured in a room of 335 square feet while using 70W of power.

Rabbit Air MinusA2 Air Purifier GermGuardian AC4825 Air Purifier PARTU BS-08 Air Purifier Related reviews

GermGuardian AC9200WCA Filter Replacement

You should always replace the filter with a genuine GermGuardian filter. Only that way you can be guaranteed high performance. GermGuardian recommends changing filters every 6 to 8 months, but since this air purifying model has a filter indicator, you can just wait for the lamp to show that the air purifier requires a change of filter.

Filters are not expensive and are of the same quality as the originals.

q? encoding=UTF8&ASIN=B017ANUUWM&Format= SL250 &ID=AsinImage&MarketPlace=US&ServiceVersion=20070822&WS=1&tag=apfpi 20&language=en USGermGuardian Air Purifier Filter FLT9200 Genuine True HEPA Replacement Filter H for AC9200WCA Germ Guardian Air Purifier

Feature Info
Product Dimensions 1.5 x 14.2 x 17.5 inches
Item Weight
2.35 pounds
True HEPA Filter captures 99.97% of dust and allergens as small as .3 microns such as household dust, pet dander, mold spores and plant pollens

Pros and Cons

To revise, here are advantages and disadvantages of the GermGuardian AC9200WCA air purifier:


  • High-Quality Material
  • Cool Futuristic Design
  • High-Performance Air Purification
  • 5 Levels of Air Filtering
  • Filter Indicator
  • Powerful Even in a Large Room


  • Price is maybe a bit higher than we are used to paying for an air purifier. But with the money comes the quality and performance and people who want the best will need to drop a little more than a few dollars.

Final Thoughts

High performance, good design, and quality material mean you will need to pay more than the usual price for an air purifier. Other than the price the GermGuardian AC9200WCA air purifier has no concerns. It has a high filtration performance, the design that fits any room and at the same time will lift the appearance of the room.

If you are having problems with allergies, I can highly recommend this product because it has lots of power to remove all allergens from the air very fast. If you turn all the options on you can have real air pollution killing machine.

Update Log

July 13, 2021 – I have improved the article design, added specifications, and rechecked some information about the product.

Leave a Reply