Our Verdict
Alen BreatheSmart 45i Wins
Its 1216 CADR ensures faster, more effective purification than Soleus Air's 73.8 CADR for smoke. Choose Soleus Air for quieter 22dB operation and smart controls in less demanding, very large spaces.
Bottom Line: Alen BreatheSmart 45i is the better choice. Its 1216 CADR ensures faster, more effective purification than Soleus Air's 73.
Key Differences
The most significant spec differences at a glance
Cadr Smoke
94% lessCoverage Sq Ft
111% moreAdvantages
Where each product wins
Soleus Air
- Coverage Sq Ft: 111% higher (4000.0 vs 1900)
Alen
- Cadr Smoke: 94% higher (73.8 vs 1216)
Who Should Buy Which?
Find the right product for your needs
Buy Soleus Air if...
Air Purifier Large Room,True
The ideal buyer for the Soleus Air Air Purifier seeks coverage for very large spaces, up to 4000 sq ft, where extreme quiet operation (22dB) and advanced smart home integration are paramount. If you prioritize app/voice control, real-time PM2.5, temperature, and humidity sensing, and don't require rapid purification for heavy smoke or VOCs, this unit is suitable. It's for those who value ambient comfort and connectivity over sheer purification speed in less demanding environments.
Buy Alen if...
Alen Air Purifier BreatheSmart
The Alen BreatheSmart 45i is ideal for buyers prioritizing rapid and highly effective air purification for medium-large rooms, up to 1900 sq ft. If you need to quickly tackle smoke (1216 CADR), pet odors, dust, or VOCs, this unit excels. This buyer values strong air quality improvement for health reasons, appreciates specific carbon filtration for odors, and requires quiet operation for undisturbed sleep. It's perfect for bedrooms, living rooms, or any space needing robust, fast air cleaning.
Spec Comparison
8 specs compared
| Specification |  |  |
|---|---|---|
| Price | $500 | $464 |
| Rating | 4.8(7) | 4.4(60) |
| Cadr Smoke | 73.8 | 1216 |
| Coverage Sq Ft | 4000 | 1900 |
| Noise Level db Min | 22 dB | — |
| Energy Star | Yes | — |
| Filter Type | True HEPA | HEPA |
| Smart Sensor | Yes | Yes |
| WiFi | Yes | — |
| Model Number | — | 45i_V2 |
Swipe horizontally to see all columns
Pros & Cons
Quick overview of strengths and weaknesses
Soleus Air Air Purifier
- Covers 4000 sq ft area in 1 hour.
- Filters with True H13 HEPA media.
- Operates at 22dB in sleep mode.
- Real-time PM2.5, temp, humidity sensors.
- 73.8 CFM CADR is low for 4000 sq ft claim.
- Odor filtration from carbon filter not specified.
Alen Air Purifier
- Covers up to 1900 sq ft hourly
- Captures particles down to 0.1 micron
- Filters VOCs, odors, chemicals
- Quiet operation promotes sleep
- Limited absorption for heavy odors/chemicals
- Requires periodic filter replacement
Frequently Asked Questions
Common questions about this comparison
Which air purifier offers better overall air quality improvement for smoke and odors?
The Alen BreatheSmart 45i is superior for air quality, boasting a 1216 CADR for smoke and specific carbon filtration for odors and VOCs. Soleus Air's 73.8 CADR is significantly lower, making it less effective for rapid purification.
What's the real difference in effective room coverage and purification speed?
Alen effectively covers 1900 sq ft hourly with its 1216 CADR, cleaning air rapidly. Soleus Air claims 4000 sq ft but its very low 73.8 CADR means it would take much longer to purify such a large space effectively for pollutants like smoke.
Is the price difference justified between these two models?
Yes, the Alen 45i, slightly cheaper at $464, offers vastly superior purification performance with a 1216 CADR. Soleus Air, at $499.99, provides a very low 73.8 CADR despite its higher claimed coverage, offering less value for effective air cleaning.
Which unit is better for quiet operation and smart home integration?
Soleus Air excels in quiet operation with a stated 22dB in sleep mode and offers advanced smart features including Wi-Fi, app, and voice control, plus real-time PM2.5/temp/humidity sensors. Alen is quiet and has a smart sensor, but lacks explicit smart home features or a stated minimum decibel level.
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