Alen
Alen BreatheSmart 45i
A H13 True HEPA air purifier rated for rooms up to 800 sq ft.
Key specs
Room coverage800 sq ft
Noise range39–55 dB
Filter life12 months
What owners say
Filter by theme
- 5.0 out of 5 stars
“Complete game changer in air quality in my home.”
- 4.0 out of 5 stars
“The filters cut down dust and odors.”
Research notes
Turbo ~187 CFM; newer 45i_V2 listings claim up to 1900 sq ft at 1 ACH; shares filters with Flex
Compare with similar models
- AlenPrice variesAlen BreatheSmart 75i3.6 out of 5 stars3.6/5i1300 sq ftQuiet operationPet hair & dander“The 75 is almost silent.”
- AlenPrice variesAlen BreatheSmart Flex3.5 out of 5 stars3.5/5i700 sq ftPet hair & danderAuto mode & sensors“The Alen BreatheSmart Flex is designed to operate quietly, making it perfect for bedrooms.”
- Mila$408Mila Air Purifier4.1 out of 5 stars4.1/5i1000 sq ftEnergy StarCARBCADR & airflowPet hair & dander“Check out the Mila. I bought the first for forest fires, the second for Covid.”
- Rabbit Air$619.95Rabbit Air MinusA23.4 out of 5 stars3.4/5i815 sq ftAHAMEnergy Star“The rabbit is better, more sensitive to detecting changes in the air.”
Full specifications
- asin
- B07HKPDXV7
- confidence
- high
- filter type
- H13 True HEPA
- model number
- BreatheSmart 45i
- noise db max
- 55
- noise db min
- 39
- smart features
- laser smart sensor, auto mode, Alen Air app (V2), LED AQ rings
- source mentions
- 2
- room coverage sqft
- 800
- has activated carbon
- True
- filter lifespan months
- 12