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 offers superior air purification with 1216 CADR smoke and 1900 sq ft coverage. Choose Dyson if heating/cooling and app control are primary needs over dedicated purification.

$464Buy on Amazon

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

Key Differences

The most significant spec differences at a glance

1,216

Cadr Smoke

100% more

1,900

Coverage Sq Ft

100% more

Advantages

Where each product wins

Alen

Cadr Smoke: 100% higher (1216 vs 0)
Coverage Sq Ft: 100% higher (1900 vs 0)

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 individuals prioritizing dedicated, high-performance air purification for expansive areas. If you need to clean air efficiently in large rooms up to 1900 sq ft, combating dust, smoke (CADR 1216), and VOCs, this is your choice. It's perfect for those seeking quiet operation for bedrooms and smart sensors to auto-adjust, without needing heating or cooling features. This buyer values a clear focus on air quality for a healthier home environment and prefers performance over multi-functionality.

Buy Dyson if...

Dyson Purifier Hot+Cool HP1

The Dyson Purifier Hot+Cool HP1 is best for tech-savvy users seeking a versatile, all-in-one climate control and purification solution. If you want to consolidate devices and prioritize features like heating, cooling, and air purification (capturing 99.97% particles >0.3 microns) in one sleek unit, this is for you. Ideal for spaces where 350-degree oscillation is beneficial and remote control via app or voice is a must-have for modern convenience. This buyer values premium multi-functionality and smart home integration more than specific air purification coverage metrics.

Spec Comparison

6 specs compared

Specification	Alen Air Purifier BreatheSmart	Dyson Purifier Hot+Cool HP1
Price	$464	$545
Rating	4.4(60)	4.4(157)
Cadr Smoke	1216	0
Coverage Sq Ft	1900	0
Filter Type	HEPA	HEPA H13
Model Number	45i_V2	HP11
Smart Sensor	Yes	Yes
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
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 Hot+Cool

Pros

Captures 99.97% particles >0.3 microns.
Removes gases and 97% of household odors.
Functions as both a heater and a cooler.
Remote control via app or voice commands.

Cons

Lacks a clear CADR rating specification.
Requires periodic filter replacement.
Full functionality depends on app or voice control.

Frequently Asked Questions

Common questions about this comparison

Which is better for air purification in large rooms?

The Alen BreatheSmart 45i is superior for air purification, offering a CADR smoke rating of 1216 and covering up to 1900 sq ft. The Dyson HP1 lacks specified CADR and coverage for comparison.

What's the main difference in air coverage?

The Alen 45i covers up to 1900 sq ft hourly, making it ideal for large spaces. The Dyson HP1 does not specify a coverage area, making its effectiveness for different room sizes unclear.

Is the Dyson's multi-functionality (heating/cooling) worth it?

If you prioritize heating and cooling along with basic air purification, the Dyson offers convenience. However, if dedicated high-performance air purification is your main goal, the Alen is more effective.

Which is more effective for removing odors and VOCs?

Alen explicitly filters VOCs, odors, and chemicals using its carbon filter. Dyson removes gases and 97% of household odors. Both are effective, but Alen specializes purely in air purification.