Our Verdict
Soleus Air Wins

It offers 4000 sq ft claimed coverage and 22dB quiet operation. Choose LG for faster purification in smaller rooms, with 99.2 CADR for 155 sq ft.
Bottom Line: Soleus Air is the better choice. It offers 4000 sq ft claimed coverage and 22dB quiet operation.
Key Differences
The most significant spec differences at a glance
Cadr Smoke
26% lessCoverage Sq Ft
2481% moreAdvantages
Where each product wins
Soleus Air
- Coverage Sq Ft: 2481% higher (4000.0 vs 155)
LG
- Cadr Smoke: 26% higher (73.8 vs 99.2)
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 needs to address air quality in very large open-concept spaces or potentially an entire small home, prioritizing maximum coverage area (up to 4000 sq ft claimed) and ultra-quiet operation, especially at night (22dB). They appreciate comprehensive smart features like app and voice control, plus real-time environmental data from PM2.5, temperature, and humidity sensors, even if air changes across the entire claimed area are slower due to the 73.8 CADR.
Buy LG if...
LG PuriCare AeroTower Air
The ideal buyer for the LG PuriCare AeroTower needs efficient and relatively fast air purification for a medium-sized room, up to 155 sq ft. They prioritize a higher smoke CADR of 99.2 CFM for effective pollutant removal and advanced particle monitoring with a PM 1.0 sensor. This user values modern design with multiple airflow options, Wi-Fi connectivity, and a comprehensive three-layer filtration system, accepting periodic filter replacement costs for superior performance in their immediate living space.
Spec Comparison
7 specs compared
| Specification | ![]() | ![]() |
|---|---|---|
| Price | $500 | $450 |
| Rating | 4.8(7) | 4.2(14) |
| Cadr Smoke | 73.8 | 99.2 |
| Coverage Sq Ft | 4000 | 155 |
| Noise Level db Min | 22 dB | — |
| Energy Star | Yes | — |
| Filter Type | True HEPA | True HEPA |
| Smart Sensor | Yes | Yes |
| WiFi | Yes | Yes |
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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.
LG PuriCare AeroTower
- 99.97% particle capture for 0.3μm.
- Three-layer filtration system cleans various pollutants.
- PM 1.0 sensor monitors microscopic particles.
- Cleans 155 sq ft rooms 4.8 times hourly.
- 744 sq ft coverage results in very slow air changes.
- Requires periodic filter replacement, incurring cost.
- Smoke CADR of 99.2 CFM limits rapid purification.
Frequently Asked Questions
Common questions about this comparison
Which air purifier is better for a very large room?
The Soleus Air unit claims coverage up to 4000 sq ft, making it suitable for very large areas, though its CADR of 73.8 suggests air changes will be slow. The LG PuriCare covers up to 155 sq ft effectively.
What's the main difference in CADR smoke ratings?
The LG PuriCare has a higher smoke CADR of 99.2 CFM, indicating faster air purification for its rated 155 sq ft area. The Soleus Air has a smoke CADR of 73.8 CFM for a much larger claimed 4000 sq ft coverage.
Which product offers quieter operation?
The Soleus Air specifies an extremely quiet 22dB noise level in sleep mode, making it ideal for bedrooms. The LG PuriCare is described as having 'low noise,' but a specific decibel rating is not provided.
Is the price difference between the two air purifiers significant?
The LG PuriCare is $50 cheaper at $449.99 compared to the Soleus Air at $499.99. This difference is minor considering the vastly different coverage claims and CADR rates for their respective target areas.
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