Name: Alen Air Purifier BreatheSmart 45i HEPA with Fresh Filter + Carbon for Large Rooms |1900 Sq. Ft| Perfect for Bedrooms - Captures Dust + VOCs & Wild...
Brand: Alen
SKU: B0FPD2J63T
Price: 464 USD
Availability: InStock
Rating: 4.4 (60 reviews)

Our Verdict

Alen BreatheSmart 45i Wins

Alen Air Purifier BreatheSmart 45i HEPA with Fresh Filter + Carbon for Large Rooms |1900 Sq. Ft| Perfect for Bedrooms - Captures Dust + VOCs & Wildfire & Cigarette Smoke - High-End Air Purifiers

It offers significantly stronger air purification with a CADR smoke of 1216 and covers 1900 sq ft. Choose Blueair for combined purification and humidification.

$464Buy on Amazon

Bottom Line: Alen BreatheSmart 45i is the better choice. It offers significantly stronger air purification with a CADR smoke of 1216 and covers 1900 sq ft.

Key Differences

The most significant spec differences at a glance

1,216

Cadr Smoke

428% more

230.13

1,900

Coverage Sq Ft

428% more

359.58

Advantages

Where each product wins

Alen

Cadr Smoke: 428% higher (1216 vs 230.13)
Coverage Sq Ft: 428% higher (1900 vs 359.58)

Who Should Buy Which?

Find the right product for your needs

Buy Alen if...

Alen Air Purifier BreatheSmart

If you need robust, dedicated air purification for very large spaces, the Alen BreatheSmart 45i is your best choice. Ideal for homeowners with expansive living areas or open-concept layouts up to 1900 sq ft, especially those sensitive to smoke, pet dander, or VOCs. Its high CADR smoke of 1216 ensures rapid air cleaning, while its quiet operation makes it perfect for bedrooms. You prioritize superior filtration performance over multi-functionality and have a budget for a premium purifier.

Buy BLUEAIR if...

BLUEAIR 2-in-1 Purify +

The BLUEAIR 2-in-1 is ideal for individuals seeking a convenient, space-saving solution that tackles both air purity and humidity. Perfect for those in dry environments or wanting year-round comfort without two separate devices. Its 360° InvisibleMist™ technology ensures balanced air, while features like easy top-pour refills appeal to users valuing simplicity. You prioritize the dual functionality and convenience, understanding the purification aspect is competent but not as powerful as a dedicated unit like Alen.

Spec Comparison

5 specs compared

Specification	Alen Air Purifier BreatheSmart	BLUEAIR 2-in-1 Purify +
Price	$464	$430
Rating	4.4(60)	4.5(14.4k)
Cadr Smoke	1216	230.13
Coverage Sq Ft	1900	359.58
Filter Type	HEPA	HEPASilent
Model Number	45i_V2	—
Smart Sensor	Yes	—

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Pros & Cons

Quick overview of strengths and weaknesses

Alen Air Purifier

Pros

Covers up to 1900 sq ft hourly
Captures particles down to 0.1 micron
Filters VOCs, odors, chemicals
Quiet operation promotes sleep

Cons

Limited absorption for heavy odors/chemicals
Requires periodic filter replacement

BLUEAIR 2-in-1 Purify

Pros

Combines air purification and humidification.
Covers 1,726 sq ft in 60 minutes for air changes.
Easy top-pour water refill; bucket option available.
Real-time alerts for water refill needs.

Cons

Requires regular replacement of air filters.
Humidifier wick likely needs periodic replacement.
Combined unit is a potential single point of failure.

Frequently Asked Questions

Common questions about this comparison

Which is better for large rooms?

Alen provides higher purification power with a CADR smoke of 1216 and covers up to 1900 sq ft. Blueair's stated coverage for air changes is 1726 sq ft, but its CADR smoke is lower at 230.13. Alen is stronger for dedicated large-room purification.

What's the main difference in functionality?

Alen is solely an air purifier, focusing on comprehensive filtration for various pollutants. Blueair combines air purification with humidification, offering a dual function in one unit for achieving balanced air quality, especially in dry environments.

Is the price difference worth it?

Alen ($464) is slightly more expensive than Blueair ($429.99). The Alen offers substantially higher purification power (CADR smoke 1216 vs 230.13) and larger dedicated coverage (1900 sq ft), which justifies its cost for pure air quality.

Which offers better overall air cleaning performance?

Alen BreatheSmart 45i provides superior air cleaning, capturing particles down to 0.1 micron and filtering VOCs/odors effectively. Its CADR smoke of 1216 is substantially higher than Blueair's 230.13, indicating greater purification strength.