Name: Alen Air Purifier BreatheSmart 45i HEPA with Pure Filter for Large Rooms up to 1900 Sq. Ft. - Perfect for Bedrooms & Home Offices - Captures Dust -...
Brand: Alen
SKU: B0FPD3RTJQ
Price: 313.06 USD
Availability: InStock
Rating: 4.7 (754 reviews)

Our Verdict

PuroAir 240 HEPA (2 Pack) Wins

PuroAir 240 HEPA Air Purifiers for Home Large Rooms - Covers Up To 1,000 Sq Ft - Filters Up To 99.9% of Pollutants, Smoke, Pollen, Dust - Quiet HEPA Air Filter - Air Purifiers for Bedroom (2 Pack) - High-End Air Purifiers

It offers superior combined coverage (2000 sq ft vs 1900 sq ft) and CADR (1280 vs 1216) for a lower price ($279 vs $313.06). Choose Alen if you prefer a single, high-capacity unit with sleep-optimized pink noise.

$279Buy on Amazon

Bottom Line: PuroAir 240 HEPA (2 Pack) is the better choice. It offers superior combined coverage (2000 sq ft vs 1900 sq ft) and CADR (1280 vs 1216) for a lower price ($279 vs $313.

Key Differences

The most significant spec differences at a glance

1,216

Cadr Smoke

90% more

640

1,900

Coverage Sq Ft

90% more

1,000

Advantages

Where each product wins

Alen

Cadr Smoke: 90% higher (1216.0 vs 640.0)
Coverage Sq Ft: 90% higher (1900.0 vs 1000.0)

Who Should Buy Which?

Find the right product for your needs

Buy Alen if...

Alen Air Purifier BreatheSmart

If you need a single, powerful air purifier for a very large space up to 1900 sq ft, the Alen BreatheSmart 45i is ideal. This buyer prioritizes convenience and advanced features like pink noise for sleep optimization, making it perfect for bedrooms or open-plan living areas. They value its high CADR of 1216 and SmartSensor for automatic adjustments, desiring effective, quiet air purification without needing multiple units. This buyer is willing to invest slightly more for a premium, integrated solution.

Buy PuroAir if...

PuroAir 240 HEPA Air

The PuroAir 240 (2-pack) is perfect for buyers seeking maximum value and flexible coverage for multiple large rooms or a sprawling open-concept area. If you prioritize superior combined performance with a budget-friendly approach, this option is excellent. With a combined 2000 sq ft coverage and a CADR (Smoke) of 1280 for $279, you can purify a vast space or place units strategically in different zones. Ideal for homeowners needing comprehensive, efficient air purification without a single hefty investment.

Spec Comparison

5 specs compared

Specification	Alen Air Purifier BreatheSmart	PuroAir 240 HEPA Air
Price	$313	$279
Rating	4.7(754)	4.6(16.0k)
Cadr Smoke	1216	640
Coverage Sq Ft	1900	1000
Filter Type	HEPA	HEPA
Smart Sensor	Yes	Yes
Energy Star	—	Yes

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Pros & Cons

Quick overview of strengths and weaknesses

Alen Air Purifier

Pros

Covers up to 1900 sq ft per hour
Filters 99.9% of 0.1 micron particles
SmartSensor adjusts fan speed automatically
Generates pink noise for sleep optimization

Cons

No stated activated carbon for odor removal
Remote app control functionality not specified
Does not specify VOC filtration capability

PuroAir 240 HEPA

Pros

Covers 1,000 sq ft area rapidly.
High CADR of 640 for effective smoke removal.
3-layer filtration removes 99.9% of pollutants.
Smart sensor automatically adjusts fan speed.

Cons

Requires ongoing cost for filter replacements.
Specific noise output (dB) not detailed.
Lacks remote or smartphone app control.

Frequently Asked Questions

Common questions about this comparison

Which air purifier offers greater overall coverage?

The PuroAir 240 (2-pack) provides a combined coverage of 2000 sq ft, slightly exceeding Alen's 1900 sq ft. This makes the 2-pack ideal for distributed purification or very large, sectioned areas.

How do their smoke removal capabilities compare?

The PuroAir 240 (2-pack) boasts a combined CADR (Smoke) of 1280, marginally higher than the Alen BreatheSmart 45i's 1216. Both are highly effective, but the 2-pack offers a slight edge in total smoke clearance.

Is the Alen's higher price justified?

The Alen costs $313.06 for one unit, while the PuroAir 2-pack is $279.0. Alen offers a single-unit solution for large rooms and pink noise. The PuroAir provides more total coverage/CADR for less, but as two units.

Which product is better for optimizing sleep environments?

The Alen BreatheSmart 45i specifically mentions generating "pink noise for sleep optimization." While PuroAir has a "quiet operation with dedicated sleep mode," Alen's unique sound feature gives it an edge for sleep enhancement.