Alen BreatheSmart FIT50 Air Purifier: Trusted Review & Specs

You don’t need to spend a fortune on an air purifier, even with a lifetime warranty. We’ve said it a hundred times before, but top-end air purifiers like the IQAir HealthPro Plus or Blueair Pro L still seem to be most people’s dream air purifiers. Fair enough, we can understand why. But the Alen BreatheSmart FIT50 is an altogether more practical proposition. After all, the mid-range air purifiers are the one many can afford to buy outright, or without a contract that costs as much as a good gym membership. Welcome to our Alen BreatheSmart FIT50 Review to know why this air purifier and Alen BreatheSmart were once the two aces for the brand at the moment.

Alen BreatheSmart FIT50 ranks C+ in our air purifier ranking list. We give the biggest and most thorough database of air purifier reviews in the world.

The Alen BreatheSmart FIT50 is superseded by the Alen BreatheSmart 75i, which is the latest flagship of Alen brand.

In Breathe Quality, we have reviewed all air purifiers under these sections. Also, we guarantee that:

  • We do give honest reviews (both pros and cons) so anyone will guarantee to have the wisest choices.
  • We do not (and never) exaggerate one product just to let you click the links and buy that product blindly.


alen breathesmart fit50 review

  • Customizable color options
  • Large room coverage
  • Very quiet
  • Lifetime Warranty

  • Still low CADR for room coverage
  • High air filter replacement cost

Alen is still stuck in a bit of a design rut, and it’s struggling to compete with the might of Rabbit Air and Levoit in mid-range segment, while the other non-American brands like Blueair, Coway and Winix continue to offer stiff competition. The Alen BreatheSmart FIT50 is Alen’s chance to position itself firmly on the air purifier map, but has it succeeded? We will see in our Alen BreatheSmart FIT50 Review.

Alen BreatheSmart FIT50 Price

The Alen BreatheSmart FIT50 is a genuine high-end air purifier. It boasts a market-leading room coverage, the latest Smart Sensor under the hood and a backup lifetime warranty service. There’s a lot to like about the Alen BreatheSmart FIT50 on paper – but a feature-packed spec sheet doesn’t always produce the top-notch experience we’ve come to expect from high-end air purifiers.

However, as we can expect from the increase of price tag which is associated with the room coverage, the Alen BreatheSmart FIT50 is not a cheap device. This will likely come as no surprise, as the Alen BreatheSmart FIT50’s price initially is $549, which is $100 more than the latest Alen BreatheSmart 45i. The bad news is that, with an available better version, why should you need to know about the Alen BreatheSmart FIT50?

Shop around though and you’ll find that the price put the Alen BreatheSmart FIT50 in direct competition with the Rabbit Air MinusA2 and Blueair Classic 405. Honestly, these air purifiers are too strong for Alen BreatheSmart FIT50 to match the power. This air purifier is slightly confusing then. Is this a true flagship air purifier that’s ready to take on the likes of these aforementioned beasts, or is it, rather, going up against young upstarts such as Levoit LV-H134, Vornado PCO575DC or GermGuardian AC9200WCA?

We also notice the presence of the Dyson Pure Cool Tower and Dyson Pure Cool Link in the same price range. These air purifiers, besides the True HEPA filter, are having an amazing cooling fan power to help you survive the summer time. The Dyson Pure Hot+Cool, with a little bit higher cost, will come with the heating power as well.

After extensive time spent reviewing the Alen BreatheSmart FIT50, I’m still not sure.

Top Alen BreatheSmart FIT50 deals right now

Alen BreatheSmart FIT50 Air Purifier for Bedrooms & Living Rooms.

The workhorse of the BreatheSmart Family, Alen BreatheSmart FIT50 can clean 900 square feet every 30 minutes. Oak Edition.

Related post: Best air purifier 2024.

Alen BreatheSmart FIT50 Design and Size

Alen’s air purifier is not only premium in name, it’s also in nature. When it comes to design, the Alen BreatheSmart FIT50 has something to be desired compared to its flagship rivals. With a not so different shape from the Alen BreatheSmart FLEX, this air purifier reduces to only 22 inches in height and 16.7 inches in width. That size makes the Alen BreatheSmart FIT50 compact enough to put anywhere in your home, especially when it can blend with the decoration easily. It’s worth noting that there are again 14 colors to select for your Alen BreatheSmart FIT50 to compliment your decor. The colors are remaining the same as the previous device in BreatheSmart family.

It’s an Alen unique selling point. In person, though, its benefits are not particularly dramatic.

But I must admit that these colors give Alen BreatheSmart FIT50 more expensive look than the Rabbit Air BioGS 2.0, for example, which reverses its style with a metal panel on the front. This air purifier is also slim with 10 inches thick, and has some of the thinnest bodies of any air purifiers, regardless of price.

There is no change for the BreatheSmart family’s air flow system. There will be another air intake grill behind the front panel, and a simple air outlet grill on top. Needless to say, the bottom-to-top air flow system is the most popular in the mid-range market at the moment, with the only exception of Blueair Classic 405.

On top of this Alen BreatheSmart FIT50, we are looking at a more complicated control panel, with no less than 7 function buttons. Again, there is a small logo named FIT50 from the bottom right of the control panel to tell you if you have the right Alen BreatheSmart FIT50 or not.

The Alen BreatheSmart FIT50 is only 16 lbs, which is smaller than both Rabbit Air MinusA2 and Blueair Classic 405 in the same price range.

Related post: Best air purifiers for bedroom.

Alen BreatheSmart FIT50 Filters

As the decisive criteria for the performance of one air purifier, by default we look at the quantity and the quality of its air filters, and what the air filter types are using. The Alen BreatheSmart FIT50 once again recovers the ionizer function, to improve its performance with the 3-stage air cleaning system, with the core is one of the 4 HEPA air filter types below.

  1. HEPA-Pure – The standard HEPA filter of Alen BreatheSmart FIT50, which is able to capture 99% of as small as 0.3 microns pollutant particles such as dust, dust mites and pollen.
  2. HEPA-Fresh – The next level HEPA filter will improve the first HEPA-Pure, with an addition of Activated Carbon filter, to deal with the household odors like cooking smells and light smoke. This air filter is necessary for people who are sensitive to VOCs.
  3. HEPA-Silver – For a little bit more money, you can upgrade to the HEPA-Silver filter with anti-microbial Silver-Ion threads that prevents the growth of mold spores and bacteria.
  4. HEPA-OdorCell – The ultimate level HEPA filter of Alen BreatheSmart FIT50, with the unique Alen’s Molecular Conversion Powder, that can destroy the odors on a molecular level.

We start the air filtration system with a proper pre-filter to help capture the large objects of pollutants. Normally, an air purifier needs pre-filter to save the lifetime of its HEPA filter, which loses the efficiency due to the high amount of pollutants on its surface. The pre-filter is washable and permanent to use.

The ionizer is back for your sake. With a new True HEPA air filter, the Alen BreatheSmart FIT50 is ready to improve the efficiency, which Alen BreatheSmart FLEX can’t do. The ionizer is clearly the right answer Alen needs. It will emit a cloud of ions to charge the pollutants back to the nearby surfaces, mostly the physical HEPA filter. There are no negative review about the ionizer of Alen BreatheSmart FIT50 making a crackling of noise, and that’s a good news.

But whatever the technology this company used for the Alen BreatheSmart FIT50, we still need a performance test to guarantee the efficiency of this air purifier against all types of pollutants. To do this, I put the Alen BreatheSmart FIT50, Medify MA-112, Aeris aair Lite, Aprilaire Allergy9550 and Rabbit Air MinusA2 into a room of 200 square feet in 1 hour. The result is very well for the Alen BreatheSmart FIT50, though the winners are clearly the Rabbit Air MinusA2 with 99.99%, and Medify MA-112 with 99.98% (for trapping any particles as small as 0.3 microns). The Alen BreatheSmart FIT50 can remove 99.95% of all these same airborne pollutants at the same time.

alen breathesmart fit50 review

You need to change the air filter after 1 year, with an average cost between $79 (for HEPA-Pure filter) and $129 (for HEPA-OdorCell filter). Compared to the $85 air filter from Rabbit Air MinusA2, the cost is a bit higher, especially when the Rabbit Air can last for at least 2 years.

Related post: Best air purifiers for allergies.

Alen BreatheSmart FIT50 Room Coverage

The Alen BreatheSmart FIT50 has improved the room coverage from the older Alen BreatheSmart FLEX. There is a single very large room coverage of 900 square feet, reducing to 530 square feet with Quiet Operation (fan speed 2). For the commercial number, it is higher than the 815 square feet from Rabbit Air MinusA2, or 434 square feet from Blueair Classic 405.

The ACH of Alen BreatheSmart FIT50 is 2X to 5X. For a room of 900 square feet, this air purifier only clean twice an hour.

The CADR of Alen BreatheSmart FIT50 is 194 Dust/ 188 Smoke/ 222 Pollen (cfm). Again, Alen strikes with a low CADR rating air purifier for large rooms. With that CADR rating, the Alen BreatheSmart FIT50 is not good enough to resolve close to all of its large room coverage. I’d take a more suitable room coverage of 300 square feet over this for every day.

Related post: Best large room air purifiers.

Alen BreatheSmart FIT50 Sound

One reason Alen gave to public for not having True HEPA filter is because they don’t want the True HEPA filter restricts airflow. It is quite reasonable, and with less restriction in the air flow, you don’t need a powerful fan to cover a large space. But now, the Alen BreatheSmart FIT50 comes with a True HEPA filter, so we can ignore this statement.

alen t500 review


Alen truly do great on limiting the noise level as low as possible. They called that technology WhisperMax, only exclusive for the BreatheSmart family. The old Alen BreatheSmart FLEX used to keep the noise level at only 39 decibels. The noise level is now even better, with only 32.4 decibels at whisper setting, which is nearly half of the noise level at library. I believe that is a great progress on making silent air purifiers from Alen company.

At the highest setting, the Alen BreatheSmart FIT50 only reaches 48.7 decibels (db). This is exactly the noise level of normal conversation at home, or other typical fan box at 100 ft. This is a great improvement, especially since the time Alen T500 reached 130 decibels at the highest setting.

Just like the predecessors, Alen BreatheSmart FIT50 also endorse the pink noise frequency, which can help you sleep better. So if you need an air purifier for your bedroom, the Alen BreatheSmart FIT50 is the perfect option.

Related post: Best air purifiers for baby.

Alen BreatheSmart FIT50 Power Consumption

One of our most FAQs is “Do air purifiers use a lot of energy?” An air purifier is meant to run for a long time to be efficient, that’s why many air purifier brands consider the energy-saving standard, mostly in the rate of Energy Star, is one important selling point.

The power consumption of Alen BreatheSmart FIT50 is 65 watts at the highest fan speed. It is a little bit higher than the brothers Alen BreatheSmart FLEX and especially, the flagship Alen BreatheSmart 75i.

Just like the Alen BreatheSmart, our today Alen BreatheSmart FIT50 is rated as an Energy Star air purifier, for being energy efficient. However, something is wrong and EPA website removed the Alen BreatheSmart FIT50, as well as other Alen air purifiers, from their list.

For using a Alen BreatheSmart FIT50 8 hours per day, it would cost you about $23 per year.

Related post: Best air purifiers for pets.

Alen BreatheSmart FIT50 Additional Features

The Alen BreatheSmart FIT50 comes with more function buttons, meaning it is ready to give out more additional features for us to experience.

Alen applies a Smart Sensor into this $549 air purifier. If you have used an air purifier with Smart Sensor before though, you will have no trouble getting acquainted with this feature. A Smart Sensor will detect the current air quality, and automatically adjust the fan speed to fit the environment. Mostly, it will keep the Alen BreatheSmart FIT50 at the lowest fan speed, and therefore reserve the energy better.

It’s a feature we really feel the need to use, not to mention the beautiful circular light around the On/off button, which can feedback exactly the current air quality in your home. You never need to run it manually, again.

And yes, we are having the basic functions such as a Timer and a LED indicator for filter replacement. For the additional features, I believe the Alen BreatheSmart FIT50 is, at last, smart enough.

Related posts:

1, Best air purifiers for smoke.

2, Best air purifiers for dust.

3, Best air purifiers for mold.

Alen BreatheSmart FIT50 Customer Service

Running through a very long review about Alen air purifiers, you may question us: “Why I need to buy Alen air purifier?” Yes, if it is not for the outstanding performance, or the top-class fan power, then there is must be something really, really important. What I’m trying to say here is the perfect customer service from the Alen Corporation.

Alen doesn’t hide the intent to speak high of their customer services. Look at their website, there are full of content to support the customers. You will have their phone, their emails, and of course, their support policies without any hindrance. To reach the Alen, you can contact them 6/7 days per week. They provide the best fast and free shipping for any products, as long as the orders are placed before 3 PM, they will guarantee to ship in the same day. Impressive, right?

They expand the refund time up to 60 days, or 2 months. You won’t need to worry about the quality of your air purifiers, because Alen will back you up with (also the first) Lifetime Warranty. Whenever your personal Alen air purifier doesn’t operate as normal, you will have a same refurbished air purifier with free shipping. To do this, please call 512-436-0457.

There are a lot of good review for the Alen customer services, that’s why I highly recommend to look for the brand if you need permanent better air quality for your home.

Top Alen BreatheSmart FIT50 deals right now

Alen BreatheSmart FIT50 Air Purifier for Bedrooms & Living Rooms.

The workhorse of the BreatheSmart Family, Alen BreatheSmart FIT50 can clean 900 square feet every 30 minutes. Oak Edition.

Our verdict

Now, the Alen BreatheSmart FIT50 is easily the most recommended air purifier in the whole Alen lineup, together with the Alen BreatheSmart 45i, thanks to a good price point for better room coverage and high-quality True HEPA filter. The device is also suggested to use in bedroom, because it has a very good silent operation.

Alen BreatheSmart FIT50 Air Purifier: Trusted Review in 2024
Alen BreatheSmart FIT50 Air Purifier: Trusted Review & Specs

Alen BreatheSmart FIT50 Reviews and Specs (Air Purifier Trusted Reviews in 2024). ✓ Cleaning Power: HEPA ✓ Lifetime Warranty ✓ Value: 3.4/5 ✓Certified Review.

Product Brand: Alen

Product Currency: USD

Product Price: 549

Product In-Stock:

Editor's Rating:
  • Performance
  • Features
  • Annual Cost
  • Design
  • Price


The Alen BreatheSmart FIT50 is for anyone who likes Alen’s air purifiers and sticks with a lifetime warranty. For new users, we suggest to buy the Alen BreatheSmart 45i instead.