Alen BreatheSmart 45i

Alen BreatheSmart 45i Quick Review

Think about it as an upgraded version to Flex, Alen BreatheSmart 45i is THE favor of the month with extended purifying coverage and improved airflow circulation against airborne microorganisms and allergens. On top of existing Alen trademark lifetime warranty and personalizable front panel, Alen BreatheSmart 45i provide exceptional value for a pet owner or asthmatic patient that is frequently impacted by airborne irritants. Comparing the BreatheSmart series on airflow delivery rate, applicable radius, noise level, and power consumption, what newer features can you expect from Alen BreatheSmart 45i air purifier?
± 429 p
     Annual filter ^    
± 39 - 118 p
Online price*
Latest Amazon price

Alen BreatheSmart 45i Specification

ProductAlen BreatheSmart 45i
15 x 25 x 8.5 in
(38.1 x 63.5 x 21.6 cm)
Weight15 lb (6.8 kg)
Coverage (up to)800 sq. ft. (74 m2)
Airflow speed53 - 190 cfm (90 - 323 m3/h)
Dust free (CADR)245 cfm (416 m3/h)
Pollen free (CADR)245 cfm (416 m3/h)
Smoke free (CADR)245 cfm (416 m3/h)
- Lifespan
- Replacement cost ($)
Washable Pre-filter (with HEPA filter)
6 - 18 months
HEPA filter
- Lifespan
- Replacement cost ($)
HEPA-Pure Filter FL40
6 - 18 months
+- 59
Carbon filter
- Lifespan
- Replacement cost ($)
Ionizer/ TechnologiesIonizer
UV-light/ PCO
Other filter
All-in-one filter
- Lifespan
- Replacement cost ($)
Optional/ Addon
6 - 18 months+- 79
HEPA-OdorCell Filter FL40-MP
6 - 18 months+- 89
HEPA-Fresh Filter FL40-CARBON
6 - 18 months+- 69
Noise level55 dB
Timer/ Scheduler2, 4, 12 hours
SensorsIntelligent sensor
Auto mode
Air qualityAQ indicator
Filter change indicator
More color options
Wi-Fi/ BTBluetooth
Remote control
Child lock
WarrantyLifetime Limited Warranty
Email/ Phone support
Product image

Key features

  • 3-stage filtration with ionizer
  • Washable pre-filter/ HEPA-Pure filter - [Optional] HEPA-Silver filter, HEPA-FreshPlus filter, HEPA-OdorCell filter
  • 4 fan speeds with auto mode/ lights-off mode
  • Smart Filter Light indicator
  • intelligent sensor technology
  • Personalizable front panel design
  • Generate soothing pink noise frequency to enhance sleep up to 25% better
  • Child-lock control panel and child-safe vent guard
  • 4, 8, 12 hour Pre-set timer
  • Forever guarantee warranty

Alen BreatheSmart 45i review

  • As always, there is no shortage of front panel design to choose from.
  • Even wider purifying coverage with superior airflow distribution.
  • Customizable filter with up to 3 optional filter upgrade.
  • Ionizer is ozone-free and can be easily turn on or off.
  • Uses the same Flex filter that is proven and long-lasting (up to 18 months).
  • Newer intelligent sensor that powered the air purifier auto/ lights-off mode.
  • Like most Alen newer air purifiers, you can easily lock 45i controls from your child.
  • Air purifier is guaranteed for life from any manufacturer's defect.
  • Lacks chemical/ odor filtration on the standard HEPA-Pure filter.
  • The 1 filter setup is easy to use, but lacks the filtration depth to compliment the HEPA filter in particle capture.
Alen BreatheSmart 45i dimension
15 x 25 x 8.5 in
(38.1 x 63.5 x 21.6 cm)
Alen BreatheSmart 45i weight
15 lb (6.8 kg)
Alen BreatheSmart 45i has all the elements of previous BreatheSmart generation design, durability, and features for an owner that requires absolute familiarity. Zero gaps between its simpleness body originate from the smooth and well-defined framework. In the meantime, the control panel is flawlessly attached and ergonomically placed to permit seamless usage. No noticeable off-gassing on Alen BreatheSmart 45i high-grade structure that would impact the solidity of the air purifier. The forever guarantee assurance will allow people to continue using the air purifier frequently without having to worry it would wear out.

Airflow efficiency and purifying coverage

The justification why Alen BreatheSmart 45i is the improved version. An air purifier that is appropriate for a roomy home, at a significant wider applicable area, the overall airflow delivery is amazing. Generally, places such as living room, office or master bedroom would very likely compliment Alen BreatheSmart 45i best.

Furthermore, Alen BreatheSmart 45i supportive airflow input and output is incredible at wiping off nearby air-borne particles. One example to demonstrate the air purifier effective purifying is nearby airborne particles e.g. dust, pet dander, pollen, mold, mildew, and fungus would all be fully taken up and captured.

Noise level and power consumption

Alen BreatheSmart 45i specifically built framework is outstanding at diminishing noise developed from the fan to a minimum level. Noise level is rather soft at low/ medium fanspeed and as expected high at fanspeed. When compare to other common household appliances, Alen BreatheSmart 45i noise level is still within a justifiable rate.

In the meantime, Alen BreatheSmart 45i cost-saving airflow purifying would save you tons of money on utility bills in long run. Electricity consumption is quite minimal at low fanspeed and needless to say will jump at higher fan speed. Alen BreatheSmart 45i power usage is marginally lesser when put next to other fairly equivalent household appliances.

noise graph

Final thoughts on Alen BreatheSmart 45i

To sum up, Alen BreatheSmart 45i is what a marvelous air purifier would be. Compare with the entire list of strong points and weak points, the added merits make certain the drawbacks have zero outcomes on the air purifier efficiency. Combined the 2 highlights above, we have no reservations strongly recommending Alen BreatheSmart 45i.

In general Alen BreatheSmart 45i 3-stage filtration is vastly efficient when pit against large-scale and small scale contaminants, allergens, bacteria and viruses. Driven by immense airflow circulation and wide purifying coverage, Alen BreatheSmart 45i included filtration is spectacular in eradicating dust, hair, pet hair, dust mites, pollen, mold, spores, mildew, fungi, germs and pet dander. 

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Smoke Filtration
Alen BreatheSmart 45i

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