Oransi EJ120 True HEPA Air Purifier – Review

Oransi EJ120 is a True HEPA MERV17 air purifier that is proudly made in the USA.

In fact, this air purifier is one of the best air purifiers on the market if we compare filtration power and efficiency. All thanks to that performance, go to a powerful motor and MERV 17 filter. I will explain in detail what is MERV 17 later on. But for now, we can agree that Oransi EJ120 is a premium air purifier that not many people can afford.

Oransi EJ120 HEPA Air Purifier


Manufacturer Oransi
Model EJ120
Dimensions 17 x 10 x 19 inches
Filters Activated Carbon (3.5 lbs) + HEPA Filter (MERV 17)
Coverage 1250 sq. ft.
Warranty 10-year
User manual PDF

Oransi EJ120 Features

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Feature Info
Best Reliability and Quality Air purifier housing, filter media and electronics all made in USA. Motor made in Germany. Only mechanical filtration.
Super Quiet The EJ is super quiet – in fact one of the quietest air purifier on the market for the given air flow.

Oransi made this unique air purifier to last. They made it be as effective as possible. Most of the features in the Oransi air purifier are pointed towards efficiency.

Made for Large Room

Thanks to powerful motors from Germany, this air purifier is capable of purifying the air in a room as large as 1250 square feet.

Only a few air purifiers are capable of doing that in such a large room and still being effective.


Extremely simple design won’t leave anyone breathless that’s for sure. Because of not an attractive design, it is best to place this air purifier somewhere where it won’t be that easily visible.

Don’t worry about efficiency because, as already stated, this air purifier is very powerful and will do a proper job even if you place it in a corner.

Made In USA

Medical grade filter and everything else except the motor is made in the USA. Motor, as already mentioned, is German. 

Simple to Use

There are no fancy options like smart sensors or wifi connections.

In fact, the Oransi air purifier only has a turn on and off button as well as fan speed buttons. There is also a filter replacement indicator.

I am not sure if it uses sensors to detect filter quality or just counts 12 months until filter replacement.

Silent at Work

German motor is powerful but also silent at work. Even if you set it to high speed, you won’t be bothered by noise.

Also, the huge advantage is that thanks to the powerful motor, you can place this air purifier away from you. That way, it will not blow directly at you, and the noise will also be reduced.

After all, patients in hospitals need a quiet room to get a full rest.

Advanced Filters

EJ120 uses True HEPA filters to purify the air. It is MERV17 rated and can remove 99,99% of airborne particles more than any other True HEPA filter.

MERV stands for “Minimum Efficiency Reporting Value” and ratings are from 1 to 20, where 20 is the highest efficiency.

However, standard air filters in a home are between 8 and 11. As you can see, Oransi EJ120 uses MERV17 filters, and because of that, there is no surprise that these types of filters are used in hospitals, labs, and other medical facilities.

Oransi air purifier also uses a carbon filter to remove odors. Since the carbon filter is large and fat, it will do a remarkable job of removing bad smells from the air.

You should not try and put a higher rating MERV filter in your air purifier if it can’t handle it. The higher the MERV, the more powerful air purifier you need, and the Oransi air purifier is powerful enough to handle it thanks to powerful German motors.

Thanks to its advanced filter, the Oransi EJ120 air purifier can remove gases, smoke, odor, pet dander, pollen, dust, and other allergens. Still, every 12 months, you will need to replace the filter.

Oransi filters took first place in the university study of air cleaners. That certificate made this air purifier be one of the first choices for the hospital operating room, pharmacy, laboratory, and even in the nuclear industry.

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Replacement HEPA Filter

You should always use a specific filter made for your air purifier model. If you cut some filters you bought for something else, then there is a high chance the air purifier will not work correctly.

In fact, it can even get a malfunction, and the warranty will not cover that because it is your own fault if you use unoriginal filters. 

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Feature Info
Advanced Filtrationt Merv 17 HEPA (99.97%+) performance. Proprietary carbon and potassium permanganate for advanced gas control.

The carbon filter can be vacuumed because it is also used as a preliminary filter. It can catch hair and large dust, which can clog the filter. Use light vacuuming on it as soon as you notice dust accumulation. Be gentle with a vacuum cleaner, so you don’t destroy the filter. Never use a vacuum cleaner on the HEPA filter.

The price of EJ120 is high if you compare the price to other air purifiers on the market. If you compare it to the initial air purifier cost, then the replacement filter is affordable.

Filter replacement is done quickly. All you need to do is to take the old filter out and place the new one in. Make sure while you are doing that the air purifier is shut down.

Pros and Cons

To revise, here are the advantages and disadvantages of the Oransi EJ120 air purifier:


  • High-Quality Material
  • Made in the USA
  • Powerful Motor
  • Powerful Even in Large Room
  • MERV17 Filter
  • Advanced Medical Grade HEPA Filter
  • Used in Hospitals
  • 10 Years Warranty


  • Price
  • Design

Final Thoughts

Let’s be honest and write that not many people can afford this air purifier. The price is high, and if you look at the fancy options, there are none of them. For an average user, this air purifier is not attractive.

But if you are having allergic problems or you need clean air to stay alive, then Oransi EJ120 is the best choice, and the money you pay is not a problem. If this air purifier is good for the operating room, then it is good for your home too. If your life depends on it, you should not bother about the price.

Once you buy Oransi EJ120, you are covered with a warranty for ten years, and after this period, only better air purifiers may come out on the market.

Update Log

September 7, 2021 – I have improved the article design, added specifications, and rechecked some information about the product.

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