GermGuardian CDAP4500BCA Air Purifier – Review

Guardian Technologies is a well-known air purifier manufacturer. CDAP4500BCA  is an exciting model with lots of options and features. In combination with a cute design, this air purifier is one of the best sellers on the market. Four in one filtration system with air quality monitoring and extremely affordable price this air purifier is the best buy.

GermGuardian CDAP4500BCA Air Purifier

If you are new to the air filtration, then this model may be a good entry point. You will get all the fancy options, high-quality air purifier, and air in the room will be clean. 

GermGuardian CDAP4500BCA Air Purifier Features

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Feature Info
Smart Control As it is Alexa and Google compatible, you can change the settings of your air purifier through voice activation and control settings remotely using the Guardian Technologies App.
Breathe Fresh And Cleaner Air GermGuardian air purifiers kill germs and viruses, filter odors, and trap allergens with a True HEPA filter and optional UV C light to deliver crisp, refreshing air to your home.

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This Germguardian air purifier uses four filtration methods to capture airborne particles. First air goes through pre-filter and charcoal filter. In these two stages, lousy odor and big particles are removed. After that air goes through True HEPA filter which is capable of removing 99,97% of airborne particles including pollen, dust, mold spores, and pet dander. The last stage is the UV-C light. UV-C light is proven to have the ability to kill airborne germs and viruses. 

With these four stages, the air in the room will be wholly filtered, and allergens, as well as viruses and bacteria, will be gone and away from your lungs.

WiFi Enabled Option

You can use your smartphone and connect to the air purifier using the GermGuardian application. With a mobile phone, you can control and see what is going on with the air in the room as well as manipulate the air purifier. You can even shut it down over the internet.

Air Monitoring

GermGuardian uses SmartAQM technology in this air purifier model. With this technology air purifier detects the number of airborne particles in the air and then choose one of the colors. If the air is terrible, it will send red color, for moderate air quality it will send yellow color, and for good air quality, you should see a green color. Always keep the air quality on a green level. 

Auto Mode

If there are sensors for air quality detection, then there must be auto mode as well. With auto mode, the air purifier will automatically optimize the work in the room. If the air quality is low, it will set a higher speed for faster pollutant removal, and if the air is good, it will only maintain the speed to keep the air on the green level. Auto mode is a perfect option if you don’t want to bother with the air quality and all the settings air purifier offers.

Set Timer

This air purifier also has the option to set a preferred time of work. You can choose from one hour up to eight hours of work. This is an excellent option if you like to run air purifier for a specific time.

Voice Control

If you have Amazon Alexa os simply you want to use Google Assistant to give orders to air purifier you can do that without a problem. The air purifier can connect with WiFi as well as Bluetooth and then controlling it with voice is simple as just talking to it.


The air purifier has indicators that will tell you when to change filters and light bulb. No need to bother with filters until the indicator says they are dirty. This option will save you time and money.

Verified Air purifier

CDAP4500BCA  is verified air purifier, and in a room as large as 150 square feet it has 99 CADR for Smoke, 107 for dust and 116 for pollen. The higher the number, the better it is at removing the particular particle. Also, keep in mind that in smaller room CADR ratings are higher, these are numbers only when used in 150 square feet room.


On the front of the tower-like air purifier, you will notice a color. This color is air quality level. Remember you need to keep it on green color all the time. On top of the tower is option panel. Buttons are well done, and on display, you can read anything that is required to operate the air purifier. This model can be bought in black or white color, and there is really nothing extraordinary about this tower-shaped air purifier. Being a tower-shaped air purifier is the advantage of placing it in a smaller room with little space.

GermGuardian Offers Generous Warranty

GermGuardian believes in their products, and because of that, they offer three years warranty. Only a few air purifiers on the market offer so generous warranty.

Maintenance Costs

Maintaining the Germguardian CDAP4500BCA  at optimal performance will require some maintenance. You will need to replace filters every six to twelve months, depending on the air purifier usage. The good news is that the application on the mobile phone has filter indicator and you will know exactly when is the time to replace filters. 

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Feature Info
Reduces Odors Activated charcoal filter helps reduce unwanted odors from pets, smoke, cooking fumes, and harmful VOC’s emitted from a variety of household products and chemicals.
Traps Allergens Charcoal filter also acts as a pre filter to capture large particle allergens such as pet hair and dust.

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You should always buy original GermGuardian filters because that guarantees performance. Filters are bought in the package, and inside the package, you will get HEPA filter as well as pre filter with a carbon filter. Replacing the filter is simple, and everyone can do it without needing to call a maintenance specialist. 

UV-C Light Bulb Replacement

Somewhere at the same time when you will replace filters, you will also need to replace a UV-C light bulb. Just like with the filters, you always need to use original GermGuiardian light bulb. 

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Feature Info
Powerful 5 Watt bulb with the power of UV C UV C light fights germs, kills airborne bacteria, viruses and mold spores.

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Overall maintenance costs of this GermGuardian model are around 50% of the initial air purifier purchase. Now, this may sound a lot, but the initial price you pay for this air purifier is extremely affordable and because of that maintenance costs are also affordable.


  • Awesome Performance Rating
  • Smart Features like Smart Sensor
  • Impress customer service
  • Large Fan Power
  • Low Energy Consumption
  • WiFi Enabled
  • Bluetooth Enabled
  • Voice Control
  • Air Quality Monitoring
  • Filter Indicator
  • Affordable Price
  • Three Year Warranty


  • CADR ratings are high, but the tests are done in 150 square feet room, which means that if you place this air purifier in the larger room than 150 square feet, the ratings will drop.


Low energy consumption, low maintenance cost, and affordable price are one of the most significant advantages this GermGuardian model offers. And on top of that, you are getting an air purifier with fantastic options like WiFi control, voice control, and air quality monitoring. I really like what GermGuardian offers in this model, and I can say that this is one of the best buy air purifiers. GermGuardian CDAP4500BCA  is safe to buy, you won’t get wrong by buying it. If you already own this GermGuardian air purifier, please write something about it in the comment box below.

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