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Alen Breathesmart air purifier

I originally made this Alen Breathesmart review as it can service large rooms up to 1100 square feet, but the further I researched it – the more I realized just how awesomely good this unit is…which eventually led to my deceleration that this is hands down the best air purifier on the market right now.

It has a customizable HEPA filter option, SmartSensor technology, and a quiet fan. Besides  the massive array of features this air purifier has to offer, it has a fantastic design which is an important point for these devices as you want something that looks good in your home…not something that sticks out like a sore thumb.

Another big advantage that made me choose this purifier was the lifetime warranty offered by Alen. If you read any of our Alen Air Purifier Reviews, you know that the machines they make are extremely well built and excel at their job. This is why they are the only air purifier company out there that offers such a long warranty.

This is the largest version from the Breathesmart range, for it’s slightly smaller brother, check out our Alen Fit50 review.

Alen Breathesmart filters


The Alen BreatheSmart comes with a true HEPA filter that takes care of 99.97% of harmful particles 0.3 microns in diameter as standard.

It comes with a pre filter and also a built in Ionizer that can be turned on and off.

On top of that – you can choose to equip it with one of three different types of addon HEPA filter:

  • HEPA Pure – This is the basic Alen filter designed to removed dust, pollen, pet dander, and other allergens. The replacement filter will cost around $40. I would recommend this filter to people who suffer from any serious respiratory conditions even to people that just want to make the air in their households fresh and dust free as it really is one of the better air purifiers at defeating dust.
  • HEPA Silver – Besides removing the dust and the allergens that HEPA Pure filter does, this one also deals with harmful bacteria and microbes. It’s equipped with a pre-filter layer that makes the filter last longer. The cost of this filter is about $70. I would recommend this one to people who have a compromised immune system or for households with small children
  • HEPA OdorCell – This filter is specifically designed to deal with odors produced by smooke and cooking. It has a pre-filter layer that extends the life of the filter and will cost you about $100. I would recommend this filter to smokers or people who live in areas with high forest fire frequency. It does a great job dealing with odors so it can be used in restaurant kitchens as well.
  • HEPA FreshPlus – This advanced filter is designed to deal with dangerous chemicals and toxins. It’s also equipped with a pre-filter layer for life extension. The cost of this filter is about $90. I would recommend using this filter to people who live in old homes where there is a possibility of mold in the walls or to people who are constantly exposed to 2nd handsmoke.

I would say that the most useful filters are the basic filter, since it’s the cheapest and does the job of removing the dust and allergens, and the OdorCell filter designed especially for strong odours. Overall, each filter does the cleaning job well but since the costs vary greatly, I would start with the simplest one to see how well it works for your particular household.


The Breathesmart comes with a built in ionizer. It charges the particles to help the HEPA filter catch as many as possible. You can turn the ionizer on whenever you wish. Many people report that the ionizer makes the air in the room smell fresher. Since there are some reservations about the safety of ionizers, I appreciate that Alen made this feature optional.


All the Alen air purifier color choices

I really like the design of this unit. It’s not too large (about 10’’x18’’x 27’’) and weighs about 20 pounds which makes it more or less easy to move from one room to another. This model is equipped with a handle to make the moving simpler.

You can choose from 14 different panel covers which is a wonderful option for people who are looking for a purifier to blend in with their décor.

The control panel is on top of the unit which is great since no buttons are sticking out and just adds to the sleek look of the device.

There is a child lock mode which stops little fingers from pushing buttons and generally makes the purifier safe for your children’s room. There is also an auto-off option that turns the unit off when you remove the panel.

Overall,  the Alen BreatheSmart has a rather modern look. The control panel lights up with different colors depending on the mode and there is a sleeping mode that dims the lights when you want to go to bed. A great option for people who want to use the unit in their bedrooms.


The noise levels are often the deciding factor for people choosing an air purifier for their households. This unit has 4 different fan speeds: low, medium, high & turbo. The first two fan speeds are more or less tolerable while the high and turbo speeds can be rather loud. The decibel information is as follows:

Low – 41.5 dB Medium – 44 dB High – 50 dB Turbo – 56 dB

When the lowest fan speed is set, the air purifier is rather quiet. The noise is comparable to the sound of a whisper and can be used in the bedroom when you are sleeping.

The medium setting is just a little bit louder and can also be used during the night unless you are a light sleeper.

The turbo fan setting is comparable to the sound of loud conversation, which is definitely too noisy for sleeping and can even interfere with watching TV or working. Fortunately though, the turbo fan setting is rarely necessary. Usually, it is used when you just bring the air purifier home and run it for the first time. It cleans out the air and then maintains the clean air levels by working on lower settings. However, if you are a smoker, you will need to settle for the loud turbo levels since the unit will be dealing with highly polluted air on a regular basis.

Coverage Area

This air purifier is designed to clean areas up to 1100 square feet. Which is massive!

However, if you want to use it as a basement air purifier or in any large room, the cleaning process will go rather slow. For example, if you use the unit in the room which is 1000 square feet, it will do about 2 air changes per hour. But when placed in a room about 400 square feet in size, it can do about 5 air changes in one hour.

For most households, 2 changes per hour are more than enough. If you are faced with heavy odours, you might want to consider using this air purifier in a smaller room. Overall, I would recommend this unit to people with large households. It seems to do a great job cleaning large areas efficiently.

The Alen breathesmart really is the best air purifier on the market for large rooms and basements right now.


This air purifier is equipped with a sensor that detects the amount of pollution in the air and adjusts the fan speed accordingly. I really appreciate this feature since it’s hard to monitor the air quality on your own, especially when you are not at home.

Another one of my favorite features is the sleep mode. The lights on the control panel are dimmed and the fan speed switches to low. When the unit is set to a sleep mode, it can easily be operated in the bedroom, even if you are a light sleeper.

This air purifier also has a filter life indicator that will tell you when the filter’s lifespan is about to expire. This is a useful option since it’s not always easy to track the filter changing times. Most people change the filters only when the air purifier starts emitting a foul smell which is already way too late.


The Alen Breathesmart is far from being a cheap model. However, this unit has high CADR ratings which means it can clean large areas. It can service a floor or even the whole house which means you’ll be saving money on buying an air purifier for every room. Meanwhile, it has a lifetime warranty which also saves you money on spare parts and other possible repairs.

Lifetime Warranty

A long warranty is usually a sign that you are purchasing a high-quality product.

Alen seems to be confident in the air purifiers it’s making so the company is offering a lifetime warranty. This warranty is only valid in the country of purchase and for the original owner.

Alen is also famous for prompt and professional customer service. After browsing through a significant number of reviews, I found only a few that had a problem with customer service and all the requests were settled efficiently.


  • High-quality filtration system
  • Optional ionizer
  • Sleek design
  • Large coverage area
  • Smart sensors
  • Intuitive controls
  • Choice of filters
  • Lifetime warranty


  • Hefty price tag

Alen Breathesmart air purifier review conclusion

After closely reviewing the Alen Breathesmart, I can safely say this is the best value for money air purifier on the market.

It is equipped with everything a person might need to keep the air in the house clean and then some!

You can choose between different filters depending on your needs.

The unit is rather quiet and has a sleep mode to be used in the bedroom.

The SmartSensor technology monitors the air quality and keeps the pollutants and allergens to a minimum.

The manufacturer offers a lifetime warranty which is an indicator of high quality.

This article was written by Fin Tatello – check out his author bio here

Alen Breathesmart Air Purifier
  • 96%
    Final Rating: - 96%


Hope you liked our review of the Alen breathesmart. Loved it so much, we gave it 3 awards and eventually decided to just crown it as the best air purifier money can buy in 2019!