I’ve already compared the Core 300 to the Blueair 411 Auto’s predecessor, and now it’s time to see how the Levoit handles the new model from Blueair.
These are two small air purifiers intended for smaller rooms. The Levoit Core 300 covers up to 219 sq. ft. (20 m²), and Blueair 411 Auto covers up to 190 sq. ft. (18 m²).
Blueair is a minimalistic air purifier but includes features such as an air quality sensor, air quality indicator, and auto mode. On the other hand, Levoit offers options such as a timer, filter reset indicator, display off, and display lock.
Regarding design and build quality, I have to say that both devices are modernly designed and will fit into almost any environment. However, I cannot fail to mention that I fancy the possibility of choosing up to five different colors for the pre-filter on the Blueair.
Our Verdict
After conducting a detailed analysis, I concluded that the Blueair 411 Auto is a worthy successor to the previous Blueair 411 model and that it can outperform the Levoit Core 300.
So, my buying recommendation goes to the Blueair 411 Auto. The reasons are its excellent performance, very low maintenance costs, unique pre-filter, and features like the air quality sensor and auto mode.
If you have any questions about these two devices, leave a comment in the comment box below the article.
Specs: Levoit Core 300 Vs Blueair 411 Auto
| Product Image |  |  |
| Manufacturer | Levoit | Blueair |
| Model | Core 300 | 411 Auto |
| Dimensions (inches / cm) | 8.7 x 8.7 x 14.2 inches (22 x 22 x 36 cm) | 16.7 x 7.8 x 7.8 inches (42.5 x 20 x 20 cm) |
| Weight (pounds / kg) | 7.5 lb (3.4kg) | - |
| Clean Air Delivery Rate (CADR) | 141 CFM (240 m³/h) | 123 CFM (210 m³/h) |
| Coverage (4.8 ACH)
Room Coverage Explanation: ACH is a measurement used in indoor air quality management to indicate how many times the air within a defined space is changed/moved through the filter media.
For more details, visit our ACH calculator tool. | 219 sq. ft. (20 m²) | 190 sq. ft. (18 m²) |
| Performance Ratings Performance Ratings Score Summary: 8.3 - Average Score (83 products) 9.8 - Best Score (2 products) 1 - Worst Score (1 products) We use the Temtop LKC-1000S laser particle meter to test the particle removal efficiency of every air purifier. It measures PM2.5 (µg/m3), PM10 (µg/m3), Particles (per/L), and HCHO (mg/m3) in the air, and also calculates the AQI. You can read more about our testing methodology here. | ||
| Filtration Technology | Pre-filter, True HEPA Filter, and Activated Carbon Filter | Washable Pre-filter, Particle Filter, and Carbon Filter |
| Filter Replacement Indicator | Yes | Yes |
| Filter Life | 6-8 months | about 6 months |
| Power Consumption
Power Usage Summary: Our extensive testing of 83 air purifiers revealed the following power consumption insights:
Check out our power consumption calculator tool. | 45W | 10W |
| Operating Costs Ratings Operating Costs Ratings Score Summary: 9 - Average Score (83 products) 10 - Best Score (2 products) 1.7 - Worst Score (1 products) We measure the power usage at all speeds using an energy meter, after which we calculate how much it would cost to use the device at a particular fan speed for one month. For reference, we use an energy price of $0.12 per kWh. You can read more about our testing methodology here. | ||
| Number of Fan Speeds | 4 – Sleep Mode, Speed 1, Speed 2, and Speed 3 | 3 – Night Mode, Everyday Mode, Boost Mode |
| Air Quality Sensor Air Quality Sensor Summary: Out of 83 air purifiers tested, only 41 have the air quality sensor. | No | Yes |
| Air Quality Indicator | No | Yes |
| Auto Mode Auto Mode Summary: Out of 83 air purifiers tested, only 42 have auto mode functionality. | No | Yes |
| Smart App Smart App Summary: Out of 83 air purifiers tested, only 26 have smart app functionality. | No | No |
| Voice Control Voice Control Summary: Out of 83 air purifiers tested, only 25 have voice control functionality. | No | No |
| Other Features | Display LockDisplay OffTimer | Smart Plug |
| Noise Level (low – high) | 40.7 – 64.9 dBA | 41.6 – 61.2 dBA |
| Noise Ratings Noise Ratings Score Summary: 9.3 - Average Score (83 products) 10 - Best Score (1 products) 8.2 - Worst Score (1 products) We use a special noise measurement tool to test the noise level of the air purifier at all speeds. We measured the noise level on the dBA scale. You can read more about our testing methodology here. | ||
| Best Suited For | Bedrooms Small Spaces Dust Allergies Children's Rooms | Bedrooms Allergies Small Spaces Dust Low Energy Cost |
| Warranty | 2-year | 2-year |
| In-Depth Review | Levoit Core 300 | Blueair 411 Auto |
| Price |
Particle Removal Test – Comparison
These two devices cover rooms of almost identical dimensions, which made performance testing much easier. The Levoit Core 300 covers rooms of 219 sq. ft. (20 m²), while the Blueair 411 Auto covers rooms of 190 sq. ft. (18 m²).
We tested these two devices in two different rooms.
In the first test, in a room of 194 sq. ft. (18 m²), the Levoit Core 300 improved air quality by about 93%, while the Blueair 411 Auto improved air quality by about 94%. Both devices were operating at maximum speed, and both tests lasted 60 minutes.
Particle Removal Tests - Comparison
We placed the Levoit Core 300 and Blueair 411 Auto in two separate tests and measured their performance using the Temtop laser particle meter.
In the second test, this time in a room size of 320 sq. ft. (30 m²), which is much larger than the recommended dimensions, these two models performed slightly worse than in the previous test, but still very well considering the room size.
The Levoit Core 300 improved air quality by about 92%, while the Blueair 411 Auto improved air quality by about 91%. This test also lasted 60 minutes, and the devices were operating at maximum speed.
Essentially, we can consider this test a draw, but I still think the Blueair 411 Auto was slightly better. Why? Because it performed better in capturing large particles in the pre-filter and because it has a larger filter.
Smoke Box Test – Comparison
These Blueair and Levoit air purifiers are very similar: they have almost identical performance and very similar filtration technology, and they are rated almost the same in our tests.
However, the Levoit Core 300 managed to remove all the smoke from the glass box slightly faster. It needed just 20 seconds, while the Blueair 411 Auto needed 27 seconds.
You might say that 7 seconds isn’t much. I can’t agree that it isn’t significant, but in the long run, you can definitely feel the difference.
Noise Level Test – Comparison
What I like about the Levoit is that it has four fan speeds, while the Blueair has only three. However, they both have a sleep mode, which is something I really appreciate in air purifiers, mostly because I use air purifiers in the bedroom.
Noise Levels - Comparison
Comparison of noise levels at all fan speeds between the Levoit Core 300 and Blueair 411 Auto air purifiers.
In sleep mode, the Levoit Core 300 produces a sound of 40.7 dBA, while the Blueair 411 Auto is slightly louder, producing a sound of 41.6 dBA.
However, at maximum speed, the situation is a bit different. The Levoit Core 300 is louder, producing a sound of 64.9 dBA, while the Blueair 411 Auto produces a sound of 61.2 dBA.
| Fan Speed | Levoit Core 300 (dBA) | Blueair 411 Auto (dBA) |
|---|---|---|
| Sleep Mode | 40.7 dBA | 41.6 dBA |
| Speed 1 (Low) | 46.4 dBA | 42.9 dBA |
| Speed 2 (Medium) | 52.9 dBA | 61.2 dBA |
| Speed 3 (High) | 64.9 dBA | - |
Considering that we are more likely to use an air purifier at lower speeds than at maximum and the fact that the Levoit Core 300 has four fan speeds, I would declare it as the quieter and better-optimized option.
Operating Costs – Comparison
Let’s be realistic: the Blueair 411 Auto uses one of the most optimized motors on the market, and it’s really hard to beat this air purifier in operating cost tests. With a motor of only 10W, it is very energy-efficient. On the other hand, Levoit uses a motor more than four times stronger, at 45W.
Monthly Power Consumption Cost - Comparison
Comparison of monthly power consumption costs for the Levoit Core 300 and Blueair 411 Auto air purifiers at all fan speeds.
If you were to leave these two devices running at maximum speed, 24 hours a day, for a month, your electricity bill would increase by about $3.81 in the case of the Levoit Core 300 and about $0.80 in the case of the Blueair 411 Auto air purifier.
However, besides the electricity costs, there’s also the cost of replacement filters. Interestingly, both devices require filter replacement on average every six months, and the price of replacement filters for these two air purifiers is almost identical.
| Fan Speed | Levoit Core 300 (W + $/month) | Blueair 411 Auto (W + $/month) |
|---|---|---|
| Standby | 0.8W ($0.07) | 0W ($0) |
| Sleep Mode | - | 1.9W ($0.17) |
| Speed 1 (Low) | 29.4W ($2.58) | 2.3W ($0.2) |
| Speed 2 (Medium) | 31.4W ($2.75) | 9.1W ($0.8) |
| Speed 3 (High) | 43.5W ($3.81) | - |
If we take all of this into account, we can easily conclude that the Blueair 411 Auto is much more affordable to maintain annually than the Levoit Core 300.
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