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: 383.2 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

It boasts a superior CADR smoke rating (253.33) and specified coverage (395.83 sq ft). Choose Dyson Purifier Hot+Cool Gen1 for its unique heating and cooling capabilities, making it a versatile climate control device despite unspecified air purification metrics.

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Bottom Line: Alen BreatheSmart 45i is the better choice. It boasts a superior CADR smoke rating (253.

Key Differences

The most significant spec differences at a glance

253.33

Cadr Smoke

25433% more

-1

395.83

Coverage Sq Ft

39683% more

-1

Advantages

Where each product wins

Alen

Cadr Smoke: 25433% higher (253.33 vs -1)
Coverage Sq Ft: 39683% higher (395.83 vs -1)

Who Should Buy Which?

Find the right product for your needs

Buy Alen if...

Alen Air Purifier BreatheSmart

If you prioritize verifiable air purification performance and a truly quiet environment, the Alen BreatheSmart 45i is ideal. This unit suits individuals needing to effectively remove smoke, dust, and strong household odors in spaces up to 395.83 sq ft, such as bedrooms or home offices. Its high CADR smoke rating of 253.33, medical-grade HEPA odor filter, and SmartSensor for auto-adjustment make it perfect for those who want to set it and forget it, ensuring clean, fresh, and quiet air for a better night's sleep.

Buy Dyson if...

Dyson Purifier Hot+Cool Gen1

The Dyson Purifier Hot+Cool Gen1 HP10 is perfect for buyers seeking a versatile, all-in-one climate control and air purification solution. If you need to purify your air, warm a room in winter, and cool it in summer, this 3-in-1 device offers convenience and space-saving design, ideal for smaller living areas or bedrooms. Its 350-degree oscillation ensures wide air circulation, and the quiet night mode is excellent for undisturbed sleep. Despite unspecified purification metrics, its HEPA standard filtration and multi-functionality appeal to those valuing utility over raw purification performance data.

Spec Comparison

5 specs compared

Specification	Alen Air Purifier BreatheSmart	Dyson Purifier Hot+Cool Gen1
Price	$383	$364
Rating	4.7(754)	4.4(919)
Cadr Smoke	253.33	-1
Coverage Sq Ft	395.83	-1
Filter Type	HEPA Odor Filter	HEPA
Smart Sensor	Yes	—
Energy Star	—	No

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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 Hot+Cool

Pros

HEPA standard sealed filtration captures pollutants.
Heats rooms in winter, cools in summer.
350-degree oscillation for wide air circulation.
Includes auto-off timer: 1, 2, 4, 8 hours.

Cons

No smartphone app for remote control.
Not Energy Star certified.
CADR and coverage area not specified.

Frequently Asked Questions

Common questions about this comparison

Which is better for dedicated air purification performance?

Alen BreatheSmart 45i is superior for air purification, with a CADR smoke rating of 253.33 and effective coverage up to 395.83 sq ft. Dyson's air purification metrics (CADR, coverage) are not specified, making direct comparison difficult based on raw performance data.

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

The Alen is a dedicated air purifier with an advanced odor filter and SmartSensor. The Dyson Purifier Hot+Cool Gen1 is a versatile 3-in-1 device, combining a HEPA air purifier with a fan for cooling and a heater for warmth, offering year-round climate control.

Is the price difference between the two worth it?

The Alen is slightly pricier at $383.20 compared to Dyson's $363.99. Alen's value comes from its proven purification specs and quiet operation. Dyson's value stems from its multi-functional heating and cooling, which may justify its cost if you need those additional features.

Which air purifier offers a quieter operation?

Both products emphasize quiet operation. The Alen is described with 'ultra-quiet operation aids sleep' and includes a pink noise feature. The Dyson has a 'quiet night mode with dimmed display.' Specific decibel levels are not provided for either to quantify the difference.