Name: Alen Air Purifier BreatheSmart 45i HEPA with Odor Filter for Large Rooms up to 1900 Sq. Ft. - Perfect for Bedrooms & Home Offices - Captures Dust -...
Brand: Alen
SKU: B0FPCVBMLJ
Price: 479 USD
Availability: InStock
Rating: 4.7 (754 reviews)

Our Verdict

BLUEAIR Blue Signature Wins

BLUEAIR Air Purifier for Large Rooms & Home - Odor Eliminating Cleans up to 3385 ft², HEPASilent, Smart WiFi, Auto Mode, Doubles as Table, Removes Dust, Smoke, Pet Hair, AHAM Verified, Blue Signature - High-End Air Purifiers

Offers superior coverage (3385 vs 395.83 sq ft effective) and CADR (2163.2 vs 253.33). Choose Alen for ultra-quiet operation in specific smaller rooms.

$450Buy on Amazon

Bottom Line: BLUEAIR Blue Signature is the better choice. Offers superior coverage (3385 vs 395.

Key Differences

The most significant spec differences at a glance

253.33

Cadr Smoke

88% less

2,163.2

395.83

Coverage Sq Ft

88% less

3,385

Advantages

Where each product wins

BLUEAIR

Cadr Smoke: 88% higher (253.33 vs 2163.2)
Coverage Sq Ft: 88% higher (395.83 vs 3385.0)

Who Should Buy Which?

Find the right product for your needs

Buy Alen if...

Alen Air Purifier BreatheSmart

The ideal buyer for the Alen BreatheSmart 45i prioritizes a serene environment, especially in bedrooms or home offices. They need medical-grade filtration capturing 0.1 micron particles and effective neutralization of strong household odors in a dedicated mid-sized room (around 400 sq ft). This user values ultra-quiet operation for uninterrupted sleep and appreciates the SmartSensor's auto-adjusting fan speed. While not for vast spaces, its focused performance and quietness appeal to those seeking targeted air purification without compromise on peace.

Buy BLUEAIR if...

BLUEAIR Air Purifier for

The ideal buyer for the BLUEAIR Blue Signature has a large open-concept home or multiple connected rooms, needing to purify up to 3385 sq ft efficiently. They prioritize high CADR for quick smoke and allergen removal, along with smart home integration via Wi-Fi for convenient control. This individual appreciates versatile products, as it doubles as a stylish side table. They seek powerful air purification that can handle various pollutants in expansive areas, offering both high performance and aesthetic appeal at a competitive price.

Spec Comparison

5 specs compared

Specification	Alen Air Purifier BreatheSmart	BLUEAIR Air Purifier for
Price	$479	$450
Rating	4.7(754)	4.6(177)
Cadr Smoke	253.33	2163.2
Coverage Sq Ft	395.83	3385
Filter Type	HEPA Odor Filter	HEPASILENT
Smart Sensor	Yes	Yes
WiFi	—	Yes

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Pros & Cons

Quick overview of strengths and weaknesses

Alen Air Purifier

Pros

Neutralizes strong household odors
Medical-grade filter captures 0.1 micron particles
SmartSensor auto-adjusts fan speed
High CADR smoke rating (253.33)

Cons

Effective coverage (395 sq ft) less than advertised
Pink noise feature may not be preferred by all users
Requires periodic filter replacement

BLUEAIR Air Purifier

Pros

Covers large areas up to 3385 sq ft.
Removes 99.97% of particles down to 0.1 microns.
High CADR of 2163.2 for smoke removal.
OdorFence technology removes strong odors.

Cons

Interactive display animations offer no utility.
Requires recurring purchase of replacement filters.
Optimal performance relies on WiFi connectivity.

Frequently Asked Questions

Common questions about this comparison

Which air purifier is better for very large, open-plan living spaces?

BLUEAIR, covering up to 3385 sq ft, is ideal for very large rooms, far surpassing Alen's effective 395.83 sq ft. For extensive open-plan areas, BLUEAIR offers unmatched capacity.

What is the main difference in their smoke removal capabilities?

BLUEAIR has a significantly higher smoke CADR of 2163.2 compared to Alen's 253.33. This means BLUEAIR can clear smoke much faster and more effectively in its designated coverage area.

Do both products offer smart features and connectivity?

Both have SmartSensors. However, BLUEAIR adds Smart WiFi and app control, enabling remote management and more integration into a smart home ecosystem. Alen primarily relies on its auto-adjusting sensor.

Is the price difference between the two products justified by their performance?

The BLUEAIR is slightly cheaper at $449.99 versus Alen's $479.00, while offering vastly superior coverage (3385 sq ft vs ~395 sq ft effective) and CADR. BLUEAIR provides much better value for performance in larger spaces.