Alen BreatheSmart Flex Review

Air Purifier
Alen BreatheSmart Purifier cleans 700 SqFt every 30 minutes, twice as fast as other air purifiers. It’s sleek design fits in any space from small to extra large bedrooms, offices, kitchens, & basements.
Alen BreatheSmart Flex

Review Feature Summary

  • Cleans air fast.
  • True HEPA.
  • Sleep mode.
* On special until end August 2020

Alen BreatheSmart Flex Purifier

Mark Johnson
Mark Johnson
Air Quality Expert
Last Updated:  Aug, 2020
Rated from 11586 reviews.

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

It’s REALLY hard to choose the best 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 Alen BreatheSmart Flex (On special until end Aug, 2020) has all the qualities and features, giving it an added advantage and an edge over its competitors.

Quick Summary of the Alen BreatheSmart Flex

Alen’s BreatheSmart Flex touts style and versatility with the power to clean the air in any room up to 700 Sq.Ft. The Flex cleans air twice as fast as key competitors and twice as quiet. Recommended for dust, dander, allergens, pet fur, odors PLUS bacteria, and mold spores. The Pure filter includes an antimicrobial compound that helps kill airborne germs, bacteria, fungi, and viruses including the flu.

The Good & the Bad


  • Striaghtforward to Use
  • Unique Design
  • Outstanding Performance.


  • Noise, as with all of these units, on its high & highest settings, the Alen makes a lot of noise & will need to be adjusted for certain applications (watching television, having conversations, etcetera)

Key Features

  • Outstanding Performance – Intuitive & easy to use controls: Filter, Timer, Speed, & Lock.
  • Colorful Designer Panels – A sleek air purifier & a modern stylish design that fits in any decor.
  • SleepScore Validated – Improves sleep by reducing seasonal allergy symptoms associated with irritated nasal passages.
  • Flex-Fresh Model – Filters ALL of the above PLUS smoke.
  • Low Energy Consumption – At its lowest setting the ourifier will use less than 50 cents a month in electricity.

What's Included?

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

  • 4 Fan Speed Settings
  • 50 Watts on Turbo Speed
  • Weighs 15 lbs
  • Stands 25 Inches Tall
  • 9-12 Month True HEPA Filter Life

Common Questions

  • Does the Alen Breathesmart Flex have an ionizer & can it be turned off?

No, the FLEX has no ionizer so there's nothing to turn off.

  • How many filters does the Alen BreatheSmart require ...are they available?

Well, the unit only has one filter. There's the HEPA filter1 and an outer filter to capture large particulates.

How Long Does the Alen BreatheSmart Filter Last?
Are Alen Air Purifiers Good?
Where Are Alen Air Purifiers Made?
What is the Best Air Purifier?

Our Verdict

The unit is an amazing air purifier, Alen’s True HEPA Pure filter is best for removing airborne allergens,2 dust, orders, pet smells, cooking odors and smoke. It comes with a high capacity True HEPA layer to capture 99. 97% of airborne particles down to 0. 3 microns3

What to Look for in a New Air Purifier?

If you’re in the market for a new Air Purifier, you’re probably looking at the different options and wondering which is the best one to choose.

Don’t worry, we’ve got you covered. Our reviews are based on the following features:


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


IQAir Health Pro Plus

Our Rating: 9.2/10

IQAir Health Pro Plus​


Rabbit Air A2

Our Rating: 9.4/10

RabbitAir MinusA2​



Our Rating: 9.0/10

Winix 5500-2


Honeywell 50250

Our Rating: 8.6/10

Honeywell 50250-S

Have you read our article on the smoke air purifier reviews?

Or our article on the air purifiers for allergies review?

Mark Johnson

Mark Johnson

Mark advises business, individuals, and organizations on how to use and get the best purifiers so as to maintain their offices and homes. For a fresher and cleaner environment, he is the man for you. He loves ideas and concepts and uses his skills to make them a reality.

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