SilverOnyx Air Purifier With True HEPA Filter – Review

SilverOnyx air purifier is one of the most exciting air purifiers because of its design. It looks like a coffee grinder machine, and if you place it in the kitchen, someone would think it is a coffee grinder and not an air purifier.

With that kind of design, SilverOnyx air purifier can blend in any room. It is not some big old box that looks like it comes from last century. It is modern air purifier with a nice artistic touch that will make your room modernized.

SilverOnyx Air Purifier with True HEPA Filter

Don’t you think that this air purifier is all about design. The SilverOnyx is lovely looking device which will filter air as fast as possible with the latest air filtering technology. And in that process, it will not release any toxins or produce any harmful substance. If you had that kind of concerns before reading this review, I could assure you that this device is safe to use in any environment.

SilverOnyx Specifications

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

Manufacturer SilverOnyx
Model KJ150F-C02
Dimensions 10.5 x 10.5 x 16.5 inches
Filters Mesh Preliminary Filter, True HEPA Filter, Activated Carbon Filter, Ionizer, and UV Light
UV-C Yes
Ionizer Yes
Coverage 500 sq. ft.
Power Usage 24W
Warranty 12-month

SilverOnyx Air Purifier Features

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Feature Info
True HEPA Filtration High quality air purifier with True HEPA H13 filter captures 99.97% of dust & allergens up to 0.3 microns including ultra-fine dust, smoke, pet dander, etc.
5 Levels Of Filtration
This compact model features 5 levels of filtration to provide the freshest, cleanest, quality air in your home. A combination filter cartridge includes a mesh pre-filter, H13 HEPA filter, and activated carbon, while a UV-C light and Ion generator work to sanitize the air even further.

True HEPA filter H13

True HEPA filters are capable of removing 99.97% of airborne particles. That means that all mold spores, dust, pet dander, pollen and other particles larger than 0.3 microns will be caught with the true HEPA filter.

5 Stages of Filtration

Cute and small air purifier but with a real deal filtration system. Most of the competitors have up to three levels of filtration, but SilverOnyx has five and that what makes the SilverOnyx stand out from the pack.

Let’s Check each of the filtration levels:

Mesh Preliminary Filter

There is nothing special about this kind of filter. Its main purpose is to catch large particles that may make expensive true HEPA filter dirty too fast. This preliminary filter will collect hair, large dust, dirt and other big air pollution.

True H13 HEPA Filter

After the preliminary filter comes the true HEPA filter, the most important filter in every air purifier. Like already mentioned above, the majority of the airborne particles will be caught with this filter.

Activated Carbon Filter

What true HEPA cant do is to remove bad odor. True HEPA filter grabs particles, but activated carbon filter will neutralize all odors in the room. It has the power to counteract all kind of bad smells. Smells like kitchen cooking, pets smells like urine, dander or just pets scent and as well smoke. Cigarette smoke or kitchen smoke can easily and fastly be removed from the room. So if you burn some food, you can turn air purifier on, and the bad smell will go away in a second.

Negative Ion Generator

Before I tell anything about this stage, I need to say that you can turn this filtering on and off. Like you maybe already know, negative ion generator machines produce ozone. they are so-called ozone generators. Ozone is harmful in large levels to humans beings. But we all know ozone is also the most crucial part of the planet earth. How many and what are the proper ozone levels in a room you will need to read in the air purifier manual.

But I use ionizer every day in my room. I open windows and let my machine run for 60 minutes. The room is closed, and nobody were inside that room while the machine works. Also, the window is open for extra generated ozone to go out. Even after 60 minutes when the machine is done I don’t enter the room for next 60 minutes, just to make sure all the extra unwanted ozone is gone into the atmosphere. If you use the air purifier in this way, you should have no concerns about ozone. But there is also an option to turn negative ion generator off, and then you really should not have any worries about ozone.

UV Light Sanitizer

UV Light Sanitizer is a new technology that we often see in new air purifiers. UV light works, it can even kill viruses and bacteria. UV Light in this air purifier kills mold and germs according to the SilverOnyx claims.

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SilverOnyx Has Lots of Options

Many other air purifiers usually have three speeds, but SilverOnyx air purifier with HEPA filter has five speeds. That means that this little device is powerful enough to clean the air in the rooms large as 500 square feet. There is also an option to set the timer, and air purifier will work automatically. It will turn on and off as you desire. On the LCD screen, you can also see PM2 display, that is particulate matter sensor that will adjust airflow automatically to keep the air in the room at the highest possible quality.

On the top of the air purifier, you can also see if the UV Sanitizer Light and Negative Ions generator is turned on.  All these options would push the price to the sky, but all the contrary the SilverOnyx is exceptionally affordable, and I am sure everyone can afford one. At least the people who suffer from allergies or anyone who has concerns about their air quality in the home.

Replacement Filter

True HEPA filters need to be replaced with time. The replacement will happen when the filters are dirty enough and not able to clean the air in the room efficiently. In other air purifiers with no alarm for filter replacement, you would need to replace filters after 12 months blindly. But with the SilverOnyx air purifier, this is not the case because there is an indicator that will tell you when you need to replace filters. By knowing when to replace filters, you are not gambling with bad air in the room, and your air purifier will work at maximum capacity all the time. Not to mention that filters are not that expensive and in the long run will considerably improve your health by keeping the air in the room at high quality.

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Feature Info
Package Dimensions 6.5 x 6.5 x 6.8 inches
Item Weight
9.3 ounces
All-in-one The replacement filter is a combination unit that contains the mesh pre-filter, H13 HEPA filter, and activated charcoal all in one.

Pros and Cons

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


  • Lots of Features and Options
  • 5 Level Filtration System
  • True Hepa Filter
  • Modern and unique Design
  • LCD Display
  • Automatic System
  • Alarm for Filter Replacement
  • Creates less than 25DB noise
  • Uses less than 24W
  • Very Affordable Air Purifier If we Look at What we Get for the Money


  • It has only 1-year warranty
  • The carbon filter could be better

Final Thoughts

SilverOnyx on first sight looks like little air purifier that can filter some air. But the fact is that this little device is extremely powerful. Thanks to its strong motors and five-speed of ventilation the device is capable of filtering even the large rooms. Ione generator may leave some people with the question over their head, but don’t be afraid of it.

If you have concerns about ozone, then just turn that option off. Even if you turn that option off and never turn it on this air purifier is an amazing purchase. I can highly recommend this air purifier to the people that have some respiratory problems. To the people with problems like asthma, bronchitis or any kind of respiratory allergies. SilverOnyx with the latest air filtration technology and powerful true HEPA filter in combination with powerful ventilation system will provide the cleanest air possible in the room.

With this device, people with respiratory problems can rest and sleep without any fear of allergens to trigger the attack.

Update Log

July 2, 2021 – I have improved the article design, added specifications, and rechecked some information about the product.


  1. Craig November 23, 2020 Reply
    • Milan A. November 26, 2020 Reply

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