The In-Depth Koios Review

Are You Considering the Koios Air Purifier?

We review the Koios to help you choose EXACTLY what you need.

* On special until end October 2021

I think you’ll agree with me when I say:

It’s REALLY hard to choose an air purifier with all the options available!

Or is it?

Well, it turns out, that after years and hundreds of hours of testing & reviewing, we have strong opinions about what makes the best air filtration system: level of purification, efficiency, and maintenance.

The KOIOS Air Purifier (On special until end Oct, 2021) has all the qualities and features, giving it an added advantage and an edge over its competitors.

White Wall


Air Purifier
The unit is an amazing air purifier. It works efficiently in clearing hair, dirt & debri from any surface.. We would recommend this product taking full advantage of its high performance and great price.

Quick Summary of the Koios

The Koios Air Purifier features the three stages of filtration (Fine Preliminary, True HEPA1, Activated Carbon filters2)that tackle 99.97% of particles & odours. It allows you to enjoy a cleaned-up breathing space all around!

The unhealthy air quality caused by smoke makes PM 2.5 skyrocketed, which gets into your respiration system. Wildfire smoke can be especially harmful to the elderly, pregnant, children, and those with chronic diseases like an asthma attack and lung diseases. Unfortunately, the smoke from California wildfires is reaching the East Coast through strong winds called the jet stream. Here’s what that means for the air near you. Tens of millions of residents’ health gets threatened.

KOIOS Air Purifier

  • True HEPA air purifier.
  • 360° Deep purification.
  • Easy operate.

* On special until end October 2021

What You Need to Know

The unit is an amazing air purifer. It works efficiently in clearing hair, dirt & debri from any surface.. We would recommend this product taking full advantage of its high performance and great price.

The Benefits & Drawbacks


  • Compact & Portable
  • Easy to Set Up
  • Perfect for Office Desks & Small Spaces


  • Works well for small space, expensive replacement filter.

Key Features

  • Neutralizes Air Dust – The Fine Preliminary Filter neutralizes air dust & improves air quality in your room.
  • Eliminates Odors & Smoke – Activated carbon filter eliminates various household odours such as cooking smells, pet odours, & cigarette smoke..
  • Preliminary Filter – Helps neutralize airborne bacteria, pet dander, mould & fungi..
  • HEPA Filter – It helps get rid of common allergy triggers including dust mites, pollen, mold, & other large particles.
  • Nightlight Function – You can turn on/off the night light via click the button. It cleans your air & lights up your path.

Specs & Useful Product Info

  • Product Dimensions: 7.5 x 6.9 x 6.9 Inches
  • Product Weight: 2.1 Pounds
  • Product Color: White

What Others Think

At the time of writing this review, there were:

  • 2604 Customers
  • Who Gave it a Rating of 4.5 Out of 5
KOIOS Review

Common Questions

What's the max square footage that the Koios Air Purifier handle?

How is the Koios Air Purifier powered? Can you use it overseas in a 220 V ac situation?

What's Included?

Here's what you get when you buy this Air Purifier:

  • 1 air purifier
  • 1 True HEPA & activated carbon filter
  • 1 AC adapter
  • 1 User manual
  • USB-C charging cable

Our Verdict

The unit is an amazing air purifier, his thing works perfectly, is a nice size, and is super light to carry. It also has a blue light to indicate when it's on.

What Features Did We Look At?

If you’re in the market for a new air purifier, you’re probably looking at the different options and wondering which is the ideal one. Don’t worry, we got you covered.


Only the most effective purifiers make the cut.

Noise Level

So there's more clean air and less noise.


Because you need a machine that’s built to last.

Ease of Use

It needs to be easy to use and easy to clean.


The Top Air Purifiers We've Reviewed

The Competition: Lots of Options, but Most Aren’t as Affordable

If this air purifier isn’t quite for you, then I’d highly recommend you check out the following reviews: is a participant in the Amazon Services LLC Associates Program & earns advertising fees by advertising and linking to
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