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 has a superior CADR of 1216 and covers 1900 sq ft, far exceeding Dyson's 76 CADR and 400 sq ft. Choose Dyson for its integrated cooling fan and advanced smart app controls, despite lower purification power.

$464Buy on Amazon

Bottom Line: Alen BreatheSmart 45i is the better choice. It has a superior CADR of 1216 and covers 1900 sq ft, far exceeding Dyson's 76 CADR and 400 sq ft.

Key Differences

The most significant spec differences at a glance

1,216

Cadr Smoke

1500% more

1,900

Coverage Sq Ft

375% more

400

Advantages

Where each product wins

Alen

Cadr Smoke: 1500% higher (1216 vs 76)
Coverage Sq Ft: 375% higher (1900 vs 400)

Who Should Buy Which?

Find the right product for your needs

Buy Alen if...

Alen Air Purifier BreatheSmart

If you need robust, wide-area air purification and prioritize a clean breathing environment above all else, the Alen BreatheSmart 45i is your best choice. Ideal for homeowners with large rooms up to 1900 sq ft, those living in areas prone to wildfire smoke, or individuals sensitive to dust and VOCs. Its high smoke CADR of 1216 ensures rapid air turnover, and its quiet operation is perfect for bedrooms. You're seeking pure air and quiet efficiency, not an integrated fan or extensive smart home connectivity.

Buy Dyson if...

Dyson Purifier Cool PC1,

The Dyson Purifier Cool PC1 is perfect for buyers seeking a stylish, multi-functional device that purifies and cools. If you have a smaller space (up to 400 sq ft) and value smart home integration with app/voice control, this is for you. It's ideal for those who appreciate premium design and want a HEPA H13 sealed system that doubles as a tower fan, offering cooling airflow while trapping fine particles. You're willing to trade some raw purification power for convenience, aesthetics, and smart features.

Spec Comparison

6 specs compared

Specification	Alen Air Purifier BreatheSmart	Dyson Purifier Cool PC1
Price	$464	$488
Rating	4.4(60)	4.4(141)
Cadr Smoke	1216	76
Coverage Sq Ft	1900	400
Filter Type	HEPA	HEPA H13
Model Number	45i_V2	TP11
Smart Sensor	Yes	Yes
WiFi	—	Yes

Swipe horizontally to see all columns

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

Dyson Purifier Cool

Pros

Captures 99.97% particles down to 0.3 microns.
Activated carbon filter removes gases and odors.
HEPA H13 fully sealed filtration system.
Projects 76 gallons/sec airflow for cooling.

Cons

Low smoke CADR of 76 for 400 sq ft coverage.
Requires extended operation for full room purification.

Frequently Asked Questions

Common questions about this comparison

Which purifier is better for large rooms or comprehensive air purification?

The Alen BreatheSmart 45i is better for large rooms, covering 1900 sq ft with a CADR of 1216. The Dyson Purifier Cool PC1 covers only 400 sq ft with a CADR of 76, making Alen significantly more effective for larger spaces or heavy air pollution.

What is the main difference in coverage and purification power?

Alen BreatheSmart 45i boasts 1900 sq ft coverage and a smoke CADR of 1216. In contrast, the Dyson Purifier Cool PC1 covers 400 sq ft with a smoke CADR of 76. Alen offers substantially greater capacity and cleaning speed.

Which product offers better smart features or additional functionalities?

The Dyson Purifier Cool PC1 excels with app and voice control, remote air quality monitoring, and a built-in tower fan providing cooling airflow. The Alen 45i includes a smart sensor for auto-adjusting fan speed, focusing purely on purification.