Alen BreatheSmart 45i 4 -Speed Ionic Smart Compatible Brushed Stainless Ionic ENERGY STAR Certified (Covers: 800-sq ft )

Returned 45i for 75i

We had purchased our initial 75i for the basement and then bought a 45i for the master bedroom. We just didn’t like the sound of the 45i for sleeping; it was too loud for us. We returned it and bought another 75i for the master and been very happy.

Returned 45i for 75i

We had purchased the 75i for the basement and then bought 45i for the master bedroom. We just didn’t like the sound of the 45i for sleeping; it was too loud for us. We returned it and bought another 75i and we’re happy.

Powerful filter that works super well!

We have one of the 45i machines (and 2 75i ones), for a smaller room in the house, where I work from home all day. This thing catches all the dust and allergens like a pro, and when it's wildfire season (Northern California) it keeps that room smelling way better than outside. Reliable and filters aren't too expensive. Definitely recommend!

Incredible Air Quality

I have an Alen 45i and also a Flex. I keep the 45i in my living room, dining room combo. The flex is in my bedroom. I cannot rave enough about Alen air purifiers. They simply have changed my life. I live in the desert southwest with lots of dust and dry air. Lots of pollen and grasses, plus I have two dogs live in my house. What a difference to these Alen Air purifiers have made for my health and allergies. Thank you for creating such an amazing product!

A breath of cleaner air!

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!

Peace of mind

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.

Alen 45I

The filter showed up fast, the sensor helped me to pin point the source of the pollutant by referencing the charts in the app

The best!

[This review was collected as part of a promotion.] The best air purifier on the market! My main goal was to get rid of cooking smells, and this filter does the job perfectly. I also tested it at my workplace, where mildew had occurred, so the space could be safely occupied before construction. Thanks to this air purifier, the air was clean - no smell and no symptoms from the mildew. I’ll definitely be getting another one for my bedroom and workspace.

Changer for My Living Room!

[This review was collected as part of a promotion.] We use the Alen i45 in our living room and have been extremely happy with it. It runs quietly, looks great in the space, and noticeably improves air quality. The air feels cleaner and fresher, and it’s made a real difference with dust and everyday odors. Setup was quick and easy, and it’s been reliable ever since. Highly recommend for anyone wanting effective, low-maintenance air purification.

45i Purifiers

I bought two of them. I recommend the odor filter, too.