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

Alen BreatheSmart 45i Wins

Alen Air Purifier BreatheSmart 45i HEPA with Odor Filter for Large Rooms up to 1900 Sq. Ft. - Perfect for Bedrooms & Home Offices - Captures Dust - White - High-End Air Purifiers

Superior smoke CADR of 253.33 vs Dyson's 76 makes it purer. Choose Dyson for combined air purification and cooling with smart app control.

$479Buy on Amazon

Bottom Line: Alen BreatheSmart 45i is the better choice. Superior smoke CADR of 253.

Key Differences

The most significant spec differences at a glance

253.33

Cadr Smoke

233% more

395.83

Coverage Sq Ft

1% less

400

Advantages

Where each product wins

Alen

Cadr Smoke: 233% higher (253.33 vs 76)

Dyson

Coverage Sq Ft: 1% higher (395.83 vs 400)

Who Should Buy Which?

Find the right product for your needs

Buy Alen if...

Alen Air Purifier BreatheSmart

If you prioritize exceptional air purification, especially for mitigating allergies, smoke, or strong household odors, the Alen BreatheSmart 45i is your ideal choice. With its high CADR smoke rating of 253.33 and a medical-grade HEPA filter that captures particles down to 0.1 microns, it ensures rapid and thorough air cleaning. It's perfect for those who need ultra-quiet operation for better sleep in bedrooms or home offices, valuing pure, clean air above multi-functional cooling features.

Buy Dyson if...

Dyson Purifier Cool PC1,

The Dyson Purifier Cool PC1 is ideal for individuals seeking a dual-function device that effectively purifies air while also providing a powerful personal cooling fan. If you highly value smart features like WiFi-enabled app control, voice command compatibility, remote air quality monitoring, and a sleek, modern design, this is your best option. It’s perfect for living rooms or personal spaces up to 400 sq ft where both superior air filtration and comfortable airflow are desired.

Spec Comparison

6 specs compared

Specification	Alen Air Purifier BreatheSmart	Dyson Purifier Cool PC1
Price	$479	$488
Rating	4.7(754)	4.4(141)
Cadr Smoke	253.33	76
Coverage Sq Ft	395.83	400
Filter Type	HEPA Odor Filter	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

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

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 is better for comprehensive air purification?

The Alen BreatheSmart 45i offers significantly better purification with a smoke CADR of 253.33, compared to Dyson's 76. It captures smaller particles (0.1 vs 0.3 microns) and neutralizes strong odors more effectively, making it superior for dedicated air cleaning.

What's the main functional difference between these two purifiers?

The Alen 45i is a dedicated air purifier, excelling in rapid air cleaning and odor removal. The Dyson Purifier Cool PC1 combines air purification with a powerful fan, projecting 76 gallons/sec airflow for cooling, offering a dual-purpose solution.

Is the price difference worth it?

The Alen 45i is slightly cheaper at $479.0 and provides superior purification performance. The Dyson PC1 at $487.99 is worth it if you prioritize a combined purifier and cooling fan with advanced app control, voice commands, and remote air quality monitoring.

Which has better smart features?

Both have smart sensors, but the Dyson PC1 excels with WiFi connectivity, app control, voice control, and remote air quality monitoring. The Alen 45i's SmartSensor primarily auto-adjusts fan speed based on detected particles.

Which is better for larger rooms or faster cleaning?

The Alen BreatheSmart 45i is better for faster cleaning in rooms up to 395.83 sq ft due to its much higher CADR smoke rating (253.33). Dyson's lower CADR (76) for similar coverage means slower purification.