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 air purification with 253.33 CADR smoke and 395.83 sq ft effective coverage. Choose Dyson for combined purification and cooling with smart features, if raw purification specs are less critical.

$479Buy on Amazon

Bottom Line: Alen BreatheSmart 45i is the better choice. Superior air purification with 253.

Key Differences

The most significant spec differences at a glance

253.33

Cadr Smoke

100% more

395.83

Coverage Sq Ft

100% more

Advantages

Where each product wins

Alen

Cadr Smoke: 100% higher (253.33 vs 0)
Coverage Sq Ft: 100% higher (395.83 vs 0)

Who Should Buy Which?

Find the right product for your needs

Buy Alen if...

Alen Air Purifier BreatheSmart

The ideal buyer for the Alen BreatheSmart 45i is someone prioritizing robust and quiet air purification for a large room, especially bedrooms or home offices up to 395.83 sq ft. If you need effective smoke (253.33 CADR) and odor removal, value medical-grade filtration, and desire an ultra-quiet machine that won't disturb sleep, this is your choice. Its SmartSensor feature offers convenience, while its lower price point makes it a more budget-friendly option for dedicated air purification without extra frills.

Buy Dyson if...

Dyson Purifier Cool TP07

The Dyson Purifier Cool TP07 is perfect for someone seeking a premium, multi-functional device that combines air purification with a cooling fan. If you prioritize real-time air quality monitoring via an LCD and app, appreciate a full-machine sealed HEPA H13 filtration system, and want purified air projected throughout the room with an elegant design, the Dyson is for you. This buyer is less concerned with specific CADR or coverage numbers, instead valuing the advanced technology, smart features, and dual-purpose convenience despite the higher price.

Spec Comparison

6 specs compared

Specification	Alen Air Purifier BreatheSmart	Dyson Purifier Cool TP07
Price	$479	$559
Rating	4.7(754)	4.3(938)
Cadr Smoke	253.33	0
Coverage Sq Ft	395.83	0
Filter Type	HEPA Odor Filter	HEPA H13
Smart Sensor	Yes	—
Energy Star	—	No
Filter Life Months	—	0

Swipe horizontally to see all columns

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

Automated pollutant sensing and capture
HEPA H13 full machine sealed filtration
Projects purified air throughout the room
Real-time air quality data via LCD and app

Cons

No CADR smoke rating provided
No room coverage specified
Filter life duration not listed
Not Energy Star certified

Frequently Asked Questions

Common questions about this comparison

Which air purifier is better for removing smoke and odors in a large bedroom?

The Alen BreatheSmart 45i excels here with a 253.33 CADR smoke rating and a HEPA Odor Filter, effectively covering up to 395.83 sq ft. It's designed for strong purification and ultra-quiet operation, making it ideal for bedrooms.

What's the key difference in purification performance between the two?

Alen provides a strong 253.33 CADR smoke rating and effective coverage of 395.83 sq ft, while Dyson does not specify CADR or coverage. Based on available metrics, Alen is clearly rated for superior purification capacity.

Is the Dyson's higher price justified?

The Dyson's higher price includes a dual function as a purifier and a cooling fan, plus advanced smart features and real-time air quality data via LCD and app. If these additions are valuable to you, it may be worth the investment.

Does either unit offer real-time air quality monitoring?

The Dyson Purifier Cool TP07 offers real-time air quality data displayed on its LCD and via a companion app. The Alen BreatheSmart 45i has a SmartSensor that automatically adjusts fan speed based on detected air quality.