Customer reviews from alencorp.com
Alen - BreatheSmart 45i 800 SqFt Air Purifier with Fresh HEPA Filter for Allergens, Dust, Odors & Smoke - White
Average customer rating
4.9
(1,371 Reviews)
Rating breakdown 1,371 reviews
5 Stars
1,238
4 Stars
91
3 Stars
23
2 Stars
9
1 Star
10
Customer Reviews for Alen - BreatheSmart 45i 800 SqFt Air Purifier with Fresh HEPA Filter for Allergens, Dust, Odors & Smoke - White
Customer Rating
5
Alen 45I
on February 10, 2026
Posted by: Jacob D.
The filter showed up fast, the sensor helped me to pin point the source of the pollutant by referencing the charts in the app
Written by a customer while visiting alencorp.com
Customer Rating
5
Peace of mind
on February 28, 2026
Posted by: Tamia
I did a lot of research on air purifiers after having mold grow on a home ERMI test and landed on this brand. I couldn’t be happier! They are stylish, quiet, and my allergy symptoms are so much better. I am super happy with all 4 units I bought and have great peace of mind that my air is clean especially during fire season.
Written by a customer while visiting alencorp.com
Customer Rating
5
A breath of cleaner air!
on March 26, 2026
Posted by: Jason
I’ve gone through my share of air purifiers, but the Alen 45i is the first one I don’t feel the need to hide behind a couch. It’s sleek, matches my decor perfectly, and is incredibly quiet. I love the color-coded ring—it’s a quick peace of mind to see that blue light and know the air is clean. Definitely worth the investment for the silence alone!
Written by a customer while visiting alencorp.com