If there’s one appliance every household needs, it’s an air purifier. There’s absolutely no way to prevent microscopic particles from seeping into your home short of wrapping it in a nonporous material, but an air purifier can snatch pesky lung irritants out of the air.

Alen BreatheSmart Classic Large Room Air Purifier Review

When you think of air purifiers, there’s one very special brand that comes to mind: Alen. Their line of BreatheSmart air purifiers can tackle any situation in any sized room without any trouble. Today, we’re going to take a look at one of their largest air purifiers, a beast of a machine built for the most spacious rooms in your home.

We’ve seen the 800-square-foot 45i and the 900-square-foot FIT50—now let’s see how the Alen BreatheSmart Classic Large Air Purifier performs.

1,100-square-foot Coverage Range

The first thing to consider when looking at potential air purifiers to take home is how large of a room it can clean.

Alen BreatheSmart Classic Large Room Air Purifier

Alen BreatheSmart Classic

This Alen air purifier is built to tackle dirty air in rooms of up to 1,100 square feet, so if you’re worried about it not being able to clean, say, the air in your living room, garage, or even multiple rooms, you can put those worries to rest.

And overkill isn’t that big of a problem. You can always activate a lower fan speed (four fan speeds available) for tinier spaces like single bedrooms.

Its lowest speed can cover 690-square-foot rooms, much larger than the typical single room. That’s versatility you can rely on!

CADR Ratings

Even though CADR ratings don’t necessarily mean a whole lot when the highest speed is activated, it can still be a good indicator of how effective it is in smaller capacities. The ratings for this device for dust, smoke, and pollen is 279, 256, and 300 CFM respectively.

Alen BreatheSmart Classic Air Purifier Review

Alen BreatheSmart Classic

It’s worth notice that CADR ratings can be affected by the type of filter it comes with. In the case of this Alen BreatheSmart model, its True HEPA Filter actually inhibits airflow and results in lower CADR ratings that it should normally be.

That being said, scoring over 250 CFM on all three categories is amazing.

Customizable HEPA Filters

Speaking of which, the True HEPA Filter, if you’re hearing about it for the first time, has the capacity to trap particles as small as 0.3 microns with 99.97% effectiveness.

Other non-HEPA type filters aren’t even on the same level as this. Furthermore, depending on what sort of pollutants your home is infected with, you can choose between four different HEPA filters to install in the Alen.

The four choices are Pure for common allergens, Silver for bacteria and mold, Fresh Plus for cigarette odors and chemical fumes, and Odorcell for nastiest odors imaginable like soiled diapers.

You can choose which of the four filters come standard in your Alen when checking out (other True HEPA Filter types sold separately).

Alen BreatheSmart Classic Air Purifier

Alen BreatheSmart Classic

Optional Ionizer

An ionizer delivers a negative charge to airborne particles which makes them latch onto the HEPA filter a lot more easily. This means better cleaning efficiency and purer air at the end of the day.

The good news is that this Alen model, like its brother models, features an optional ionizer for improved air-purifying abilities.

The reason this is optional is, despite Alen’s claims of it being ozone-free, there’s still a very tiny risk of the lung irritant becoming concentrated when running the ionizer for extensive periods.

You should only activate the ionizer when your home is absent of people and pets. This is where the timer function comes into play.

3 Timer Settings

To ensure that the ionizer is inactive by the time you get back from work, you can set up the timer function to two, four, or twelve hours of continuous cleaning.

Alen BreatheSmart Classic

Alen BreatheSmart Classic

Upon reaching the time limit, the Alen will switch to standby mode to await further cleaning commands.

This is undoubtedly a handy function if you plan on using the ionizer. If not, and you’d still like the convenience of not having to babysit the air purifier while at home, then simply turn on auto-cleaning mode.

Air Quality Sensor

The Alen uses a series of sensors to constantly gauge the concentration of airborne pollutants indoors. Upon reaching a certain threshold, the air purifier will begin its cleaning cycle by intelligently choosing the appropriate cleaning speed for maximum efficiency.

When the level of pollutants has gone down to a tolerable level, the device will switch to standby mode to, once again, await further cleaning instructions.

Alen BreatheSmart Classic Review

Alen BreatheSmart Classic

Related Alen Air Purifiers Articles
Single Reviews
Alen BreatheSmart FLEX
Alen BreatheSmart 45i HEPA Air Purifier
Alen BreatheSmart 75i
Alen BreatheSmart FIT50
Alen BreatheSmart Classic

Comparison Articles
Alen vs. RabbitAir vs. Molekule


Overall, when comparing this unit to other Alen BreatheSmart models, there isn’t a ton of difference. In fact, other than its 1,100-square-foot cleaning range and higher CADR ratings, they’re identical in every way.

That being said, for those of you looking for an air purifier for large or more airborne-pollutant-filled rooms, this Alen BreatheSmart Classic model is one of the best options.

Alen BreatheSmart Classic Large Room Air Purifier Review

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