Clarifion Air Ionizer Review – Works as an Air Purifier?

The Clarifion is an ionizer, not an air purifier. It modifies the states of airborne particles instead of capturing them.

Our Verdict





Operating cost


Value for money


Ease of use




My objective opinion is that the Clarifion Ionizer makes some changes in the air, and the air feels different and even cleaner when the Clarifion is turned on. My performance tests also confirm this, but is it enough to make the Clarifion air ionizer a buying recommendation?

Frankly, I always prefer an air purifier with a HEPA filter rather than an ionizer, which is also my recommendation. We reviewed plenty of HEPA air purifiers, and the Clarifion underperformed all of them. It improved the air quality in a 65 sq. ft. room by about just 44% in 60 minutes, which is the lowest result we ever got.

However, if you want a very cheap, portable, plug-in device that doesn’t require filter replacement and is somehow effective in reducing airborne particles, then the Clarifion air ionizer may be a good choice for you.

If you have questions about the Clarifion air ionizer, please leave a comment in the comment section below.

What we really like?

  • It produces ozone as a byproduct but in allowed amounts, which is confirmed by being CARB-certified.

  • This product doesn’t use filters, so there is no need for filter replacement.

  • The Clarion is one of the quietest devices out there; it produces almost no noise.

  • It’s very affordable, easy to maintain, and cheap to run.

What could be better?

  • The Clarifion air ionizer isn’t very effective in cleaning the air, which is confirmed in performance tests.

  • It doesn’t actually clean the air; it uses ionization technology instead of having physical filters.

  • It’s totally inefficient against VOCs, smoke, and bad odors.

  • It produces ozone.


Manufacturer Clarifion
Model Air Ionizer
Dimensions (inches / cm) 1.82 x 2.56 x 4.13 inches (4.62 x 6.5 x 10.4 cm)
Filtration Technology Ionizer
Filter Life Doesn’t have a filter
Coverage (4.8 ACH) /
Number of Fan Speeds Only one
Noise Level (low – high) Very quiet
Efficiency Test 44% in a 65 sq. ft. room
Power Consumption 1W
Warranty Extendable to 2-year

Full Review

I do my best to purchase and review every air purifier that catches my attention. Still, occasionally, I find some devices worth evaluating that aren’t necessarily air purifiers but very similar devices: ionizers, air quality monitors, etc. That’s why I bought the Clarifion air ionizer, and in this article, I will do a comprehensive review of it.

Clarifion Air Ionizer - In-depth Review
Clarifion air ionizer on a small desk. Photo: / Milan Antonic

The Clarifion is an ionizer, not an air purifier. It modifies the states of airborne particles, depositing them onto surfaces instead of keeping them floating in the air, in contrast to traditional air purifiers that capture and remove airborne particles.

It’s a simple plug-in ionizer, very compact, reasonably priced, and popular among users. The Clarifion Ionizer doesn’t have a fan; instead, it generates negative ions in the air using electrostatic ionization technology. These negative ions naturally adhere to positively charged pollutants like dust, pollen, pet dander, etc., making them heavier and causing them to settle on surfaces such as walls, furniture, and floors.

I performed different tests on this compact air ionizer, answered numerous unanswered questions, managed an in-depth evaluation of the Clarifion Ionizer, and finally determined whether it was a worthwhile purchase or not.

Setup & Installation

This device comes ready to use, requiring no preparations before the first start. Simply plug it in, and you’re good to go.

Design & Controls

The Clarifion air ionizer is a small, aesthetically pleasing device designed in California. It boasts excellent build and plastic quality. 

Clarifion Air Ionizer - Logo
Clarifion ionizer is a tiny device. Photo: / Milan Antonic

What’s the first thing I noticed after getting this device is that it’s much smaller than I initially thought it would be. It looks more like an air quality monitor than an air cleaning device. 

This ionizer doesn’t have any buttons but has a blue light indicator that indicates that the device is turned on. Personally, I would prefer a button to turn off this blue light.

The Clarifion is available in white, making it a charming addition to almost any ambiance.


As I mentioned earlier, the Clarifion Ionizer doesn’t have a fan, resulting in not having any airflow. Its operational principle revolves around emitting negative ions into the surrounding air.

Size and Dimensions

Measuring just 0.16 lbs and 1.82 x 2.56 x 4.13 inches in size, the Clarifion Ionizer is notably smaller than traditional air purifiers. 

Clarifion Air Ionizer Vs an Air Quality Monitor - Side-by-side
Clarifion Air Ionizer Vs an Air Quality Monitor – Side-by-side. Photo: / Milan Antonic

It reminds me of some air quality monitors I have also tested. For reference, I took an image where I put the Clarifion ionizer and an air quality monitor side-by-side.

What is in the Box?

After purchasing the Clarifion air ionizer, you receive 1x Clarifion and 1x User manual.

Ionization Technology

The Clarifion air ionizer uses a negative ion filtration technology. It releases negatively charged ions into the air, attaching to positively charged airborne particles like dust, allergens, and dander. These negative ions may make positively charged airborne particles heavy, causing them to fall to the ground, where they can be swept up or vacuumed.

Clarifion Air Ionizer placed on a small desk
Clarifion air ionizer. Photo: / Milan Antonic

What’s the catch here is that the Clarifion doesn’t use any filter, so you don’t have to replace them, but it also doesn’t actually remove or capture particles; it just makes them fall to the bottom.

So, when using the Clarifion air ionizer, you mightn’t see many airborne particles around you but will see much more dust on floors, carpets, furniture, etc.

While the Clarifion air ionizer is CARB-certified and complies with strict California laws regarding ozone production, it’s essential to note that a large amount of ozone could negatively affect human health.

Noise Test

Although the Clarifion Ionizer lacks a fan or any significant noise-producing components, I tested its noise levels, confirming its whisper-quiet operation

Clarifion Air Ionizer - Bottom side
Bottom side. Photo: / Milan Antonic

Being very quiet when operating makes this ionizer a great option for use in bedrooms, offices, libraries, or similar places.

Performance Tests

Despite not actively cleaning the air, the Clarifion air ionizer reduces a substantial amount of airborne particles, as evidenced by my performance tests. 

Clarifion Ionizer - Opening on the side
Opening on the side. Photo: / Milan Antonic

The first thing I must mention is that the Clarifion air ionizer actually doesn’t clean the air; it just reduce a huge amount of airborne particles. As my tool (and likely any similar tool) for testing the air quality measures the volume of airborne particles, I successfully measured how well/fast the Clarifion ionizer neutralizes airborne particles.

# Starting Baseline After 60min
PM 2.5 96.5 51.4
PM 10 135.1 71.9
Particles 140016 74563
AQI 126 70

For 60 minutes of working in a 65 sq. ft. room, it reduced the airborne particles in the air by about 44%, which is much lower than some of the worst air purifiers I have tested so far. 

For example, the Levoit Core Mini, which is in the same price range, improved the air quality by about 91% in my tests. Also, one of the lowest-performing air purifiers I have tested so far, the Jinpus, has also made better results in performance testing than the Clarifion ionizer.

What I also tested is how the Clarifion ionizer acts in conditions with high amounts of VOCs, such as in the kitchen or in places with huge amounts of cigarette smoke. In conclusion, it doesn’t work for neutralizing VOCs.

I would only recommend the Clarifion air ionizer in places with dust, allergens, dander, and similar airborne particles in the air. But, if you ask me, I would definitely give priority to any air purifier with a HEPA filter instead.

Operating Costs

This is the most energy-efficient device I have tested so far. The Clarifion air ionizer uses less than 1W when working. 

You won’t notice any raises in your electrical bill as this ionizer uses almost no power. What is also so great about this ionizer is that you can keep it running 24/7 with minimal power usage. Just plug it into any electrical socket and leave it for constant purification day and night.

FAQ on Clarifion Ionizer

Does the Clarifion ionizer work?

It does the thing it’s made to. But, for proper air filtration, I would always instead buy an air purifier with a traditional HEPA filter: such a device usually doesn’t produce ozone and captures/removes airborne particles, which is not the case with the Clarifion ionizer.

Is the Clarifion safe to use?

An ionizer that could produce large amounts of ozone as a byproduct. However, the Clarifion ionizer is CARB-certified, meaning it produces ozone in the allowed amounts, ensuring it’s safe to use. 

Does it have filters?

Clarified is an ionizer, which means it doesn’t have any filter.

What’s the warranty for the Clarifion ionizer?

Clarifion offers a 30-day return period and an optional 2-year extended warranty, available for purchase on their website.

Should you use more than one Clarifion?

Frankly, I wouldn’t use more than 2-3 Clarifion Ionizers in a home. These devices are CARB-certified and produce no harmful amount of ozone, but more than one Clarifion may produce more ozone, which can go above the allowed/recommended amounts, especially in smaller places.

Is Clarifion ionizer the same as an air purifier?

No, the Clarifion Ionizer works completely differently. It releases negative ions into the air without capturing or removing airborne particles. On the other hand, air purifiers usually have different filtration types that capture or remove airborne particles in the air.

When to clean your Clarifion ionizer?

I would suggest cleaning the Clarifion ionizer at least once monthly. However, if you ever hear a faint clicking noise from your Clarifion, it means it’s time for cleaning ion emitter points. You can do so using a soft brush or cloth.

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