BreatheSmart 45i 800 Sq. Ft. Air Purifier with Pure HEPA Filter for Allergens, Dust & Mold

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Product details

Web ID: 16664863

Alen BreatheSmart 45i sleek, space-saving air purifier w Pure, True HEPA (H13) filter. Quietly cleans 800 SqFt in 30 min. SleepScore Labs validated to improve sleep by reducing allergies, capturing 99.9% of allergens, dust, pollen, dander.

  • Product Features

    • Alen BreatheSmart 45i sleek, space-saving air purifier w Pure, True HEPA (H13) filter. Quietly cleans 800 SqFt in 30 min. SleepScore Labs - reducing allergies, capturing 99.9% of allergens, dust, pollen, dander.
    • IMPROVED SLEEP: The BreatheSmart 45 is proven to improve sleep according to a peer-reviewed study by SleepScore Labs. Incredibly quiet, the 45i emits a soothing pink noise that boosts frequencies in the lower octaves, so you wake up feeling rested.
    • ROOM SIZE: The BreatheSmart 45i quietly and efficiently circulates the air in rooms up to 800 sq. ft. every 30 minutes. Perfect for primary bedrooms and other large bedrooms.
    • ENGINEERED TO PERFORM: Alen air purifiers excel with powerful yet quiet fans, advanced filtration (H13 filters capturing 0.1-micron particles like dust, pollen, germs), and energy efficiency, costing just $0.12/day for 24/7 operation.
    • WIFI ENABLED: Connect the BreatheSmart 45i to the Alen Air app to view real time air quality and see historical trends. You can also control your purifiers remotely, set air quality notifications, and get reminders when it s time to replace your filter.
    • Wipe clean
    • Imported
    • Request warranty information

  • Shipping & Returns

    • This item qualifies for Free Shipping with minimum purchase! exclusions & details
    • Our Normal Gift Boxing is not available for this item.
    • This item may not be shipped to Federated States of Micronesia, U.S. Virgin Islands, Palau, Hawaii, Northern Mariana, Marshall Islands, Guam, American Samoa, Puerto Rico, Alaska
    • This item may not be shipped to Alaska, American Samoa, Guam, Hawaii, Marshall Islands, U.S. Virgin Islands, Puerto Rico, Palau, or the Pacific Islands.
    • California and Minnesota customers call 1-800-289-6229 for Free Shipping information.
    • For complete details, see our Shipping and Returns policies.

Ratings & Reviews

Here's what customers think
  • The air purifier is highly effective at improving air quality, reducing allergy symptoms, and decreasing dust and odors.
  • Key strengths include excellent purification performance, responsive air quality monitoring, quiet operation, and a stylish, compact design.
  • While there were a few minor drawbacks reported, such as occasional inconsistencies in the air quality indicator and some noise on the highest settings, the majority of reviews were extremely positive, with many customers highly recommending the product.
AI-generated summary from 1,377 customers reviews.
4.9/5

1,377 star ratings & reviews

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1,377 reviewssorted by Newest

Jason
15 days ago

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!

Customer review from alencorp.com

Tamia
1 month ago

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.

Customer review from alencorp.com

Jacob D.
2 months ago

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

Customer review from alencorp.com

Anastasia
2 months ago

The best!

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.

Customer review from alencorp.com

Crystal
3 months ago

Changer for My Living Room!

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.

Customer review from alencorp.com

N
3 months ago

45i Purifiers

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

Customer review from alencorp.com

Brian D.
3 months ago

Good purifiers

We have 5 of the Flex Purifiers. We like them all. They are quiet, have a good exchange rate, and a good design. I have to give 3 stars because they just stopped offering the VOC/Smoke filters which have the most carbon. This was one of the reasons we bought so many purifiers from this company. So, we are disappointed by that change. I hope they bring them back at some point.

Customer review from alencorp.com

Scott
5 months ago

Good

I purchased the Alen BreatheSmart 45 for our master bedroom and it has been excellent so far. It’s powerful enough to handle the space, and within a short time we noticed the air quality feels much better—cleaner, fresher, and overall more comfortable. The unit runs quietly, even on higher settings, and the design blends in nicely with the room. Overall, I’m very happy with this purifier. It does exactly what it promises and has made a noticeable difference in our home’s air quality. Highly recommend!

Customer review from alencorp.com