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Oransi mod Jr Review – HEPA Air Purifier

Derek Hales

Written By: Derek Hales

Updated on:

The mod jr from Oransi is a medium sized air purifier with a low-profile modern design. How well does it purify the air? Let’s find out now.

Low-profile HEPA filter with large coverage area


Oransi mod jr.

The Oransi mod jr. is a medium sized air purifier with 360° coverage. The HEPA filtration system covers 878 sq. ft. and offers great cleaning performance. In oru air purification tests it reduced the airborne particles by 94.8% and improved PM2.5 and PM10 to 0.2. It offers a handle to easily carry the device, and a low profile design to blend into your home.Buy at Amazon


  • Large coverage up to 878 sq. ft.
  • Great purification performance reducing particles from 1414 to 74 and improving overall air quality by 98.4%
  • Simple to use, low-profile design
  • Handle that makes it easy to carry


  • No Wi-Fi connectivity or remote control options
  • No sensor-based auto mode


Simple, modern HEPA air purifier
  • Design - 99%
  • Performance - 98%
  • Quality - 100%
  • Usability - 95%
  • Value - 95%


The Oransi mod jr. offers a simple design from looks to usage. It is quick to set up and get turned on. With a coverage of 878 sq. ft., the Oransi mod jr. was able to reduce the airborne particles by 94.8% and improve the overall air quality by 98.4%. While there is no app connectivity, the simplistic aesthetic and solid performance are selling points of their own.

Purification Test

To test the Oransi mod jr., we set up the air purifier in a medium sized room in our office. I took a baseline measurement before starting the test to measure the current air quality.

Then, I let the mod jr. run on the highest setting for 1 hour and then measure the air quality to get another set of measurements.

We can then compare the difference between the starting baseline and the post-run data to determine the performance of the mod jr.

Starting Baseline

  • PM2.5: 12.6
  • PM10: 21.2
  • Particles: 1414
  • AQI: 52

After 1 Hour

  • PM2.5: 0.2
  • PM10: 0.2
  • Particles: 74
  • AQI: 1

Within the 1 hour test, the mod jr. removed 94.8% of air particulates from the medium-sized room we tested in (~14’x10’).

The Oransi mod jr. improved PM2.5 air quality by 98.4%

Oransi mod jr.
Oransi mod jr.

In order to get these measurements, we used the Temtop LKC-1000S+ professional air quality detector. This device allows us to get precise readings and performance bearings before and after the test. 

Below, we’ve included information on the testing criteria and what defines good vs. bad air quality. 

air quality index - PM 2.5 particulate matter index

The mod jr. achieve good purification scores by reducing the PM2.5 from 12.6 to 0.2 and the PM10 from 21.2 to 0.2. While I would have liked to see the PM2.5 get to a 0.1, this is still great performance from the mod jr.

The Filters

Inside the mod jr. there is a singular filtration unit that utilizes 3 different filtration layers. These layers include:

  • Pre-filter
  • HEPA filter
  • Activated carbon filter

First, the pre-filter catches larger particles like dust or hair before they enter the device.

Oransi mod jr. HEPA filter
Oransi mod jr. HEPA filter

Following that, the HEPA filter acts as the main part of the filtration unit. It removes smaller particles like pet dander, pollen, and smaller dust particles.

Finally, the carbon filter traps odors, smoke, VOCs, and other smells. 

Noise Test

We also tested how loud the air purifier was while running. To run this test we run the air purifier on the three different modes and use a sound meter to measure noise level. We tested the mod jr. from about 3’ away. 

Oransi mod jr.
Oransi mod jr.

Our results showed the following decibel levels from each mode.


19.3 dB


35.5 dB


49.1 dB

There are additional levels of power between these 3 modes. However, the loudest the device will get is 49.1 dB, which is a similar level to the hum of a refrigerator. 

Common noise levels:

  • 20 dB – rustling leaves
  • 30 dB – whisper
  • 40 dB – quiet library, babbling brook
  • 50 dB – refrigerator, moderate rainfall
  • 60 dB – normal conversation, dishwashers
  • 70 dB – traffic, showers
  • 80 dB – alarm clock, telephone dial tone

Usability Test

The mod jr. is designed to be simple and blend into the décor. Because of that, using the device is incredibly easy. There are just a few things included in the box, but that makes it easy to set up.

Here is what is in the box:

  • Mod jr. air purifier
  • HEPA filter unit (inside air purifier & wrapped)
  • Manual

The power cord comes pre-attached so there is no need to worry about having it accidentally becoming disconnected. 

Set up

Because of the simplistic design the mod jr. took seconds to set up. The filter unit comes wrapped in plastic and located inside the air purifier.

Oransi mod jr. removing filter
Oransi mod jr. removing filter

Before plugging in the device, you’ll need to remove the plastic from around the filter and replace the filter back into the mod. Once it is inside, you can plug in the mod jr. and turn it on. 

Oransi mod jr. base lock
Oransi mod jr. standing base

The mod jr. is designed to sit on the floor, and the manufacturer recommends setting it up in a place you spend a lot of time. Additionally, Oransi includes a handle on top of the air purifier that makes it easy to use. This handle folds into the device, which helps keep the low-profile look. 


To control the mod jr. you can interact with the touch screen on top of the device.

Via the touch screen, you can:

  • Turn on/off the device
  • Change the power mode
  • Reset the filter replacement icon

Changing the power mode of the mod jr. requires swiping along the power bar on the display. You can swipe to the exact section of the bar you want, getting a more precise power level compared to other units that simple toggle between modes.

Oransi mod jr. top
Oransi mod jr. top

While this is an interesting way to change the mode, I sometimes found it to be a little less responsive than I would like. I occasionally was not able to get to the exact level of power I wanted, but it is possible it just takes some time getting used to. 

Otherwise there are no other ways to control the device. The Oransi mod jr. doesn’t connect to an app nor is there a remote available for the device. 

Oransi mod jr. controls
Oransi mod jr. controls

Additionally, there is no auto mode, which is a little disappointing. Auto mode is nice to have as it would allow the purifier to adjust the fan speed based on the surrounding air quality. 

While there is no “sleep mode” on the mod jr. it is designed to be quiet. The lowest mode only creates 19.3 dB of noise.

Furthermore, the display will dim a few seconds after you’ve interacted with it. After the screen has dimmed, it isn’t too bright, and is comfortable to sleep in the same room with. 


Taking care of the mod jr. is simple due to the simplistic design. The only item of maintenance required is replacing the HEPA filter. The manufacturer recommends replacing the filter every 6-9 months, however, the exact time can change depending on usage. 

Oransi mod jr. filter removed
Oransi mod jr. filter removed

The display will indicate the remaining life of the filter and will notify you when it needs to be replaced.

Below is the process to replace the filter:

  • Unplug the device and remove the base
  • Remove the old filter, and replace with a new one
  • Replace the base, and plug in the device

The base of the mod jr. has a locking feature to ensure the base doesn’t accidentally open. When replacing the base, make sure to line up the bottom appropriately so it can re-lock.

Size & Dimensions

The Oransi mod jr. is a medium sized air purifier designed to cover a small to medium sized room. 

Oransi mod jr.
Oransi mod jr.

Here are the exact dimensions of the mod jr.:

  • Length – 12”
  • Width – 12”
  • Height – 22”
  • Weight – 18 lbs.

With a coverage of 878 sq. ft., the Oransi mod jr. has a slightly smaller coverage area than the full-sized Oransi mod, which has a coverage of 1250 sq. ft.

See our Oransi mod review here for more info.

Should you buy the Oransi mod jr.?

I would recommend the Oransi mod jr. if you’re looking for the following features:

  • Great performance: In our purification tests, the mod jr. showed excellent cleaning performance. It was able to reduce airborne particles from 1414 to 74. Additionally, it improved the PM2.5 from 12.6 to 0.2 and PM10 from 21.2 to 0.2.
  • Easy to use: The Oransi mod jr. has a simple design that is meant to blend in. Because of this, the air purifier is easy to set up, use, and maintain. The touch screen controls are intuitive, and maintenance is minimal and easy. 
  • Large area coverage: The 878 sq. ft. of coverage makes the mod jr. a fitting choice for a medium sized room. Additionally, the built-in handle makes the device easy to move for coverage in a different area.

For more info and to purchase the Oransi mod jr click here.

About Derek Hales

Derek HalesDerek Hales is the Founder and Editor-in-Chief of He has been featured in Fast Company, Reader's Digest, Business Insider,, She Knows, and other major publications. Derek has a Bachelor's Degree in Business Administration from Kansas State University. Hales has been testing and reviewing products for the home since 2014.