Name: Alen Air Purifier BreatheSmart 45i HEPA with Pure Filter for Large Rooms |1900 Sq. Ft.| Perfect for Bedrooms & Home Offices - Captures Dust + Pet D...
Brand: Alen
SKU: B0FPD3WFTG
Price: 449 USD
Availability: InStock
Rating: 4.7 (754 reviews)

Our Verdict

Alen BreatheSmart 45i Wins

Alen Air Purifier BreatheSmart 45i HEPA with Pure Filter for Large Rooms |1900 Sq. Ft.| Perfect for Bedrooms & Home Offices - Captures Dust + Pet Dander & Household Odors - White - High-End Air Purifiers

Superior air purification with 1216 CADR and 1900 sq ft coverage. Choose Dyson if you prioritize a multi-functional device with cooling and smart app controls for smaller rooms.

$449Buy on Amazon

Bottom Line: Alen BreatheSmart 45i is the better choice. Superior air purification with 1216 CADR and 1900 sq ft coverage.

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 (1216.0 vs 76)
Coverage Sq Ft: 375% higher (1900.0 vs 400)

Who Should Buy Which?

Find the right product for your needs

Buy Alen if...

Alen Air Purifier BreatheSmart

The Alen BreatheSmart 45i is ideal for homeowners or renters who need powerful, dedicated air purification for large rooms or open-concept living areas up to 1900 sq ft. If you suffer from severe allergies, have pets, or are concerned about smoke and airborne particles, its high 1216 CADR and HEPA H13 filter are paramount. Those prioritizing quiet operation for bedrooms, especially with its 'pink noise' for sleep, will find this a superior choice, valuing pure air over additional features like cooling.

Buy Dyson if...

Dyson Purifier Cool PC1,

The Dyson Purifier Cool PC1 is perfect for individuals seeking a premium, multi-functional device that combines air purification with personal cooling. If you live in a smaller space (up to 400 sq ft), value smart home integration with app/voice control, and appreciate a modern, bladeless design that doubles as a fan, this product is for you. It's suitable for those who prioritize convenience, aesthetics, and versatility over sheer purification power for very large areas, willing to pay a premium for its combined features.

Spec Comparison

6 specs compared

Specification	Alen Air Purifier BreatheSmart	Dyson Purifier Cool PC1
Price	$449	$488
Rating	4.7(754)	4.4(141)
Cadr Smoke	1216	76
Coverage Sq Ft	1900	400
Filter Type	HEPA H13	HEPA H13
Smart Sensor	Yes	Yes
Model Number	—	TP11
WiFi	—	Yes

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Pros & Cons

Quick overview of strengths and weaknesses

Alen Air Purifier

Pros

Covers up to 1900 sq ft hourly
Removes 99.9% of 0.1 micron particles
SmartSensor auto-adjusts fan speed
Operates quietly, emits pink noise for sleep

Cons

Requires ongoing purchase of replacement filters
Unit requires dedicated space due to large coverage
Operational noise level at max fan speed unknown

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 air purifier is better for a large open-concept living space?

The Alen BreatheSmart 45i is significantly better for large rooms, covering 1900 sq ft hourly compared to Dyson's 400 sq ft. It also boasts a much higher CADR for smoke particles (1216 vs 76).

What is the main difference in air purification performance?

The Alen offers a much higher smoke CADR of 1216 for 1900 sq ft, ensuring rapid and extensive purification. The Dyson has a smoke CADR of 76 for 400 sq ft, focusing more on personal space purification combined with cooling.

Is the price difference worth it for the Dyson Purifier Cool PC1?

The Dyson is pricier but includes a powerful cooling fan, app control, and a sleek design. If multi-functionality, smart features, and personal cooling are priorities, the Dyson's higher cost might be justified despite its lower purification coverage.

Which product offers better smart features?

The Dyson Purifier Cool PC1 has superior smart features, including app and voice control, remote air quality monitoring, and 350° oscillation. The Alen features a SmartSensor for auto-adjusting fan speed but lacks app connectivity.