Some of the links on this page may link to our affiliates. Learn more about our ad policies.

Alen Air Purifier Company Review

  • Overall Rating
    4.5/5
  • Products & Services
    4.5/5
  • Cost
    4/5
  • Ease of Use
    4.5/5
  • Customer Support & Reviews
    4.5/5
View More

Alen has a strong commitment to air purification – demonstrated in the fact that air purifiers are all they make and sell. The company offers six different models, all which cover a wide range of square feet and cost. All models run with True HEPA filtration and come with a lifetime warranty, if you activate a filter subscription with the company.

Find What You Need


What Products Does Alen Make?

Alen BreatheSmart 75i True HEPA Air Purifier

Product Shot of an Alen 75i Air Purifier with HEPA Filter
  • Covers up to 1300 square feet
  • Multiple color options
  • Lifetime warranty
  • True HEPA filter

Consumer Reports gives the Alen 75i an excellent overall score for its air purification capability. The unit works with a true HEPA filter and cleans the air every 30 minutes in your room on its highest setting. The 75i will cover up to 1300 feet, so it’s a great option for an open floor plan. It’s Energy Star certified, has five fan speeds and comes in multiple color options. You will easily know it’s doing its job with its advanced particle sensor technology. The color-coded sensors will let you know the quality of the air around you and the air purifier will adjust accordingly to clean it. The 75i emits a pink noise, so you can easily sleep with it on. It can also connect to your Wi-Fi and be controlled through the Alen app.

Product Shot of an Alen 75i Removable Cover
Product Shot of an Alen 75i Controls

Alen BreatheSmart 45i True HEPA Air Purifier

Product Shot of an Alen 45i Air Purifier with HEPA Filter
  • Covers up to 800 square feet
  • Multiple color options
  • True HEPA filter
  • Lifetime warranty

The Alen BreatheSmart 45i has been validated by SleepScore – a company that independently evaluates and test products that claim to help improve sleep. The 45i covers up to 800 square feet and works with a true HEPA filter, which can also pull chemicals and smoke out of the air. You can get real-time air quality updates from the unit’s advanced particle sensor technology. The color-coded sensors will let you know the quality of the air around you and the air purifier will adjust accordingly to clean it. It’s Energy Star certified, has four fan speeds and emits a pink noise sound for better sleep.

Product Shot of an Alen 75i Air Purifier with HEPA Filter

Alen BreatheSmart Flex

Alen BreatheSmart Flex Product Shot
  • Multiple color options
  • Lifetime warranty
  • Covers up to 700 square feet
  • True HEPA filter

Like the 45i, the Alen BreatheSmart Flex has been SleepScore validated to help improve sleep. It comes in multiple color options, has four fan speeds, covers up to 700 square feet, and is Energy Star certified. The True HEPA filter can be tailored to filter out smoke and odors, as well as indoor pollutants.

Alen BreatheSmart FIT50 True HEPA Air Purifier

Alen BreatheSmart FIT50 Replacement HEPA Filters
  • Lifetime warranty
  • Covers up to 900 square feet
  • True HEPA filter
  • Activated carbon filtration

The Alen BreatheSmart FIT50 is a smaller air purifier, standing only two feet tall, but it will purify the air for up to 900 square feet. It has four fan speeds, is whisper quiet and can sense air quality and adjust accordingly. The FIT50 works with a True HEPA filter and also has activated carbon filtration to get rid of toxic smoke and odors.

Alen BreatheSmart Classic

Alen BreatheSmart Classic
  • Lifetime warranty
  • Covers up to 1100 square feet
  • True HEPA filter
  • Multiple color options

The Alen BreatheSmart Classic covers up to 1100 square feet and can sense and rate your air quality, and adjust accordingly to clean it. The unit is whisper quiet, has four fan speeds and an auto-mode where you can adjust the air purifier to work when and how you want it to. It works with a True HEPA filter that can help get rid of odors.

Alen T500

Product Shot of Alen T500 Air Purifier
  • Lifetime warranty
  • Covers up to 500 square feet
  • True HEPA filter
  • Two color choices

The Alen T500 has a small, space-saving design that will cover up to 500 square feet every 30 minutes. It works with a True HEPA filter, which also targets mold and odors. It’s Energy Star certified, lightweight and easy to move. The unit comes in two color choices and has three fan speeds.

Alen’s Additional Features and Services

Alen Air Quality Monitor

he Alen Air Quality Monitor delivers real-time air quality information to your smartphone through the Alen app. The monitor uses a laser sensor to measure particle levels, temperature and humidity in the room where it’s placed. It can be put on a table or mounted on the wall and will cost you around $130 if you buy it separately, but you can bundle it with an Alen air purifier and get the monitor for $25. 

Alen Air App

Alen has an app that you can download on your smartphone or tablet. It’s air quality monitor and some of its air purifiers can be adjusted and controlled remotely through the app.

Forever Guarantee

Alen is the only air purifier company that offers a lifetime guarantee. Every air purifier the company makes comes with a standard one-year guarantee. But if you register your air purifier with Alen and become an active member of the filter replacement program, you will be given a lifetime warranty for the product.

The lifetime warranty will give you access to faster customer service, as well as alerts on any updates or recalls Alen’s products may have or need. It will also cover any defects in materials or workmanship for the life of the air purifier.

Filter Replacement

Alen recommends you only use Alen-branded filters for its air purifiers. Replacement filters can be expensive, but the company offers a filter subscription program to lower the cost. It will deliver new filters to your door every few months and give you a 10 percent discount on the cost.

Alen Customer Reviews

Alen air purifiers don’t just rank well with their customers, they have received high marks and praise from Consumer Reports, Forbes, Buzz Feed, and Digital Trends, among others. They regularly rank on the ‘best of’ lists for air purifiers.

You will see rave reviews on TrustPilot from customers who’ve bought Alen air purifiers, as well as on the company’s website. Customers are overwhelmingly pleased with their purchase and believe it has made a huge difference in the air quality of their home.

There have seven complaints registered with the Better Business Bureau (BBB) over the past three years, ranging from problems with the filter program to products that aren’t working correctly. All have been addressed and rectified with the customers.

Alen Cost

Alen’s air purifiers range in price from $200 to $750 depending on the model you choose. The cost of the products is average compared to other air purifiers on the market. 

Alen does offer financing through Affirm. If you buy your air purifier directly from Alen, you can pre-qualify for financing on the company’s website and choose to make fixed monthly payments over three, 12 or 18 months. Your purchase will have to be more than $250 to participate in the Affirm financing program.

Alen Company Background

Alen was a company born out of a love. It was founded in 2004 by engineer, Peter Mann. Mann has a son who suffers from asthma, and he was looking for respiratory relief for him. He used his engineering know-how to launch the Austin-based air purifier company. Today, Alen is a leader in HEPA air purification, receiving numerous industry awards for its quality products.

The Bottom Line on Alen

Alen is a company committed to improving air quality in your home, office or business. Its products work with true HEPA filters – which is the gold standard in air purification. The company’s air purifiers rate high with customers and regularly make ‘best of’ lists compiled by trusted sources. Alen is the only company that offers a lifetime guarantee for its products. If you’re looking for a long-lasting, effective air purifier – Alen products are a good choice.

Related Articles