It was summer in Seattle and the blooming things were exploding with delight, unleashing a blanket of pollen on the city and providing job security for the makers of Sudafed. I'd grown weary of sneezing myself to sleep at night and of constantly vacuuming up dust. It was the summer I turned to air purification for my salvation.
I bought the Alen 45i on the recommendation of Consumer Reports. After a few initial hours on turbo, it settled into a quiet cycle on auto mode and I haven't had to touch it since. Pretty quickly, my dust level was significantly diminished and I was sleeping better. I found that when I walked downstairs in the morning I would immediately start sneezing, so I ended up purchasing the larger 75i for my living room (probably overkill for my space; it's a gigantic beast). Both units are extremely quiet unless they're on turbo — but they call it turbo for a reason — and they're super-easy to setup and use. They also look nice, and I like that you can turn off the display light on the 45i so it doesn't cast unnecessary light in the bedroom at night.
So far so good on the filter, though I haven't had it long enough to say whether it's as long-lasting as claimed. Assuming it continues to perform I think it's worth the investment for cleaner air and better sleep.
Additional Details
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Make it a bundle
We found 2 bundles with this item:
Alen Air Purifier BreatheSmart 45i HEPA with Pure Filter for Large Rooms up to 1600 Sq. Ft. - Perfect for Bedrooms - Captures Allergens, Dust, & Mold
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Alen BreatheSmart 45i HEPA Air Purifier Virtual Bundle - Medical Grade Filtration H13 True HEPA for Large Rooms 800 SqFt - 99.9% Airborne Particle Removal- Pure White & Fresh White$872.00 $873.00This bundle contains 2 items
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$428.99
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From the brand
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OUR MISSION
We’re a company of innovators, creators, technologists, allergy sufferers, health fanatics, parents and pet lovers, and we’re on a mission to empower you to optimize your indoor atmosphere. We’re here to help you improve the quality of your life by making your air pure, and 100% you.
OUR VISION
To inspire a healthier life and provide peace of mind for everyone through clean and safe air.
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Air Purifiers
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Air Purifier and Filters
Product Description
COMPARISON CHART
 BreatheSmart FLEX |  BreatheSmart 45i |  BreatheSmart Fit50 |  BreatheSmart Classic |  BreatheSmart 75i |  Alen T500 Air Purifier | |
|
Customer Reviews
|
3,830
|
1,302
|
22
|
947
|
719
|
661
|
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Price
| $269.00 | $498.00 | — | — | $769.00 | — |
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Coverage Area
| 700 Square Feet | 800 Square Feet | 900 Square Feet | 1,100 Square Feet | 1,300 Square Feet | 500 Square Feet |
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Ionizer Feature
| ✘ | ✔ | ✔ | ✔ | ✔ | ✔ |
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Designer Color Panels
| ✔ | ✔ | ✔ | ✔ | ✔ | ✘ |
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Smart Sensor & AQ Indicator
| ✘ | ✔ | ✔ | ✔ | ✔ | ✘ |
|
Maximum Power Consumption
| 50 Watts | 50 Watts | 60 Watts | 105 Watts | 45 Watts | 53 Watts |
|
Filter Life (Running 24/7)
| 9-12 Months | 9-12 Months | 9-12 Months | 9-12 Months | 12-15 Months | 6-12 Months |
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Best Purifiers for Your Space
| Nursery Rooms,Small Classrooms | Play Rooms, Kitchens, Offices | Big Bedrooms, Workshops | In-Law Suites, Living Rooms | Open Office Spaces, Basements | Small Bedrooms,Walk-in Closets |
Videos
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Videos for this product
2:42
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After 2 years of using it, this is why I LOVE it!
Studio ArcWorks
Videos for this product
1:15
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Honest Review OF The Alen 45i Air Purifier As A Dog Owner
Joeliente
Videos for this product
2:17
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Honest Review of Alen Air Purifiers BreatheSmart 45i HEPA
Julia Carter
Videos for this product
0:34
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2 things that help reduce dust #ShouldIBuyThis?
Corinna Bernstein
Compare with similar items
This Item  Alen Air Purifier BreatheSmart 45i HEPA with Pure Filter for Large Rooms up to 1600 Sq. Ft. - Perfect for Bedrooms - Captures Allergens, Dust, & Mold |  |  |  |  |  | |
| Price | $428.99 | -30% $244.99 List: $349.99 | -15% $84.95 List: $99.99 | $769.00 | -31% $159.50 List: $229.99 | $119.99 |
| Delivery | Get it as soon as Saturday, May 4 | Get it as soon as Saturday, May 4 | Get it as soon as Saturday, May 4 | Get it as soon as Saturday, May 4 | Get it as soon as Saturday, May 4 | Get it as soon as Saturday, May 4 |
| Customer Ratings | ||||||
| Noise level | ||||||
| Easy to use | ||||||
| Sleep mode | ||||||
| Maneuverability | ||||||
| Energy efficiency | ||||||
| Sold By | Alen Corporation | Amazon.com | Amazon.com | Alen Corporation | Amazon.com | Amazon.com |
| filter type | HEPA | Activated Carbon | 3 in 1 filtration | HEPA | Pre-Filter | 3 Stage Filtration |
| floor area | 1600 square feet | 635 square feet | 80 square meters | 2600 square feet | — | 1008 square feet |
| control method | application | application | touch | application | touch | touch |
| power source | 120V | Corded Electric | AC | Electric | Corded Electric | AC |
| particle retention size | 0.1 micron | — | 0.3 micron | 0.1 micron | 0.3 micron | 0.3 micron |
| noise level | 39 decibels | 23 decibels | 24 decibels | 45 decibels | 53.8 decibels | 23 decibels |
Reviews with images
Superb air quality in the house
Very impressed with the air cleaner and I will be purchasing another one
Top reviews from the United States
There was a problem filtering reviews right now. Please try again later.
Reviewed in the United States on July 21, 2022
Color: (White)Size: Dust, Mold, OdorStyle: Air PurifierVerified Purchase
It was summer in Seattle and the blooming things were exploding with delight, unleashing a blanket of pollen on the city and providing job security for the makers of Sudafed. I'd grown weary of sneezing myself to sleep at night and of constantly vacuuming up dust. It was the summer I turned to air purification for my salvation.
I bought the Alen 45i on the recommendation of Consumer Reports. After a few initial hours on turbo, it settled into a quiet cycle on auto mode and I haven't had to touch it since. Pretty quickly, my dust level was significantly diminished and I was sleeping better. I found that when I walked downstairs in the morning I would immediately start sneezing, so I ended up purchasing the larger 75i for my living room (probably overkill for my space; it's a gigantic beast). Both units are extremely quiet unless they're on turbo — but they call it turbo for a reason — and they're super-easy to setup and use. They also look nice, and I like that you can turn off the display light on the 45i so it doesn't cast unnecessary light in the bedroom at night.
So far so good on the filter, though I haven't had it long enough to say whether it's as long-lasting as claimed. Assuming it continues to perform I think it's worth the investment for cleaner air and better sleep.
I bought the Alen 45i on the recommendation of Consumer Reports. After a few initial hours on turbo, it settled into a quiet cycle on auto mode and I haven't had to touch it since. Pretty quickly, my dust level was significantly diminished and I was sleeping better. I found that when I walked downstairs in the morning I would immediately start sneezing, so I ended up purchasing the larger 75i for my living room (probably overkill for my space; it's a gigantic beast). Both units are extremely quiet unless they're on turbo — but they call it turbo for a reason — and they're super-easy to setup and use. They also look nice, and I like that you can turn off the display light on the 45i so it doesn't cast unnecessary light in the bedroom at night.
So far so good on the filter, though I haven't had it long enough to say whether it's as long-lasting as claimed. Assuming it continues to perform I think it's worth the investment for cleaner air and better sleep.
Images in this review
Reviewed in the United States on July 21, 2023
Color: OakSize: Dust, Mold, Odors + Heavy SmokeStyle: Air PurifierVerified Purchase
Reviewed in the United States on April 21, 2024
Color: GraphiteSize: Dust, Mold, Odors + Heavy SmokeStyle: Air PurifierVerified Purchase
Reviewed in the United States on December 2, 2020
Color: OakSize: Dust, Mold, Odor + SmokeStyle: Air PurifierVerified Purchase
Reviewed in the United States on April 2, 2022
Color: WhiteSize: Dust, Mold, Odors + Heavy SmokeStyle: Air PurifierVerified Purchase
Top reviews from other countries
Tonyzee
Best rated air purifier by consumer report
Reviewed in Canada on December 6, 2021Color: WhiteSize: Dust, Mold, Odor + SmokeStyle: Air PurifierVerified Purchase
Franz JC
Quite pricey but well worth it
Reviewed in the United Kingdom on August 23, 2021Color: WhiteSize: Dust, Mold, Odor + SmokeStyle: Air PurifierVerified Purchase
W. H.
Super Luftreiniger
Reviewed in Germany on December 18, 2020Color: WhiteSize: Dust, Mold, Odor + SmokeStyle: Air PurifierVerified Purchase
Paul L.
Great Product, Disappointed on false "Lifetime Warranty" Claim
Reviewed in Canada on February 21, 2022Color: WhiteSize: Dust, Mold, Odor + SmokeStyle: Air PurifierVerified Purchase
Jürgen S.
Guter Luftreiniger, super Support durch den Hersteller
Reviewed in Germany on December 17, 2020Color: WhiteSize: Dust, Mold, Odor + SmokeStyle: Air PurifierVerified Purchase
