This time, I will test and thoroughly compare the Levoit EverestAir and the Blueair 311i Max.
These are two premium air purifiers with interesting features and very good performance in our tests. However, the Levoit EverestAir has a CADR of 360 CFM (612 m³/h), while the Blueair 311i Max is slightly weaker, with a CADR of 250 CFM (425 m³/h).
Both devices offer many advanced smart features. The Levoit uses mechanical three-stage filtration technology, while the Blueair, in addition to three-stage filtration, also includes a built-in ionizer.
Our Verdict
I think the differences in this comparison are more or less clear. The Levoit EverestAir is much more powerful, more efficient, and overall a better air purifier than the Blueair 311i Max.
The Levoit has a better-optimized motor for noise, a more advanced smart app, and better pre-filter and carbon filter performance, and it doesn’t produce ozone. On top of that, it achieved better results in performance tests, all of which are strong reasons to declare it the better buying option.
If you have any questions about the Levoit EverestAir or the Blueair 311i Max, feel free to leave a comment in the comment section below the article.
Specs: Blueair 311i Max Vs Levoit EverestAir
| Product Image |  |  20% off |
| Manufacturer | Blueair | Levoit |
| Model | 311i Max | EverestAir |
| Dimensions (inches / cm) | 19 x 12.5 x 12.5 inches (48 x 32 x 32 cm) | 18.9 x 8.5 x 24.5 inches (48 x 21.6 x 62.2 cm) |
| Weight (pounds / kg) | 7.8 lb (3.56 kg) | 20.3 lb (9.2 kg) |
| Clean Air Delivery Rate (CADR) | 250 CFM (425 m³/h) | 360 CFM (612 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. | 387 sq. ft. (36 m²) | 558 sq. ft. (52 m²) |
| Performance Ratings Performance Ratings Score Summary: 8.3 - Average Score (100 products) 9.9 - Best Score (1 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 | Washable Pre-filter, Particle Filter, Activated Carbon Filter, and HEPASilent | Washable pre-filter, Main Filter, and Activated Carbon Filter |
| Filter Replacement Indicator | Yes | Yes |
| Filter Life | 6-9 months | 12-15 months |
| Power Consumption
Power Usage Summary: Our extensive testing of 100 air purifiers revealed the following power consumption insights:
Check out our power consumption calculator tool. | 30W | 70W |
| Operating Costs Ratings Operating Costs Ratings Score Summary: 8.8 - Average Score (100 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 | 5 - Sleep Mode, Speed 1, Speed 2, Speed 3, and Turbo Mode |
| Air Quality Sensor Air Quality Sensor Summary: Out of 100 air purifiers tested, only 50 have the air quality sensor. | Yes | Yes |
| Air Quality Indicator | Yes | Yes |
| Auto Mode Auto Mode Summary: Out of 100 air purifiers tested, only 51 have auto mode functionality. | Yes | Yes |
| Smart App Smart App Summary: Out of 100 air purifiers tested, only 29 have smart app functionality. | Yes | Yes |
| Voice Control Voice Control Summary: Out of 100 air purifiers tested, only 28 have voice control functionality. | Yes | Yes |
| Other Features | Washable Pre-filter | Wheels |
| Noise Level (low – high) | 40.2 – 59.5 dBA | 40.1 – 63.2 dBA |
| Noise Ratings Noise Ratings Score Summary: 9.2 - Average Score (100 products) 10 - Best Score (1 products) 7.6 - 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 | Living Rooms Offices Low Energy Cost Large Spaces Dust Quiet Operation | Pets Living Rooms Offices Allergies Large Spaces Dust Smart Home Integration |
| Warranty | 3-year | 2-year |
| In-Depth Review | Blueair 311i Max | Levoit EverestAir |
| Price |
Performance Test – Comparison
Although the Blueair 311i Max is somewhat weaker than the Levoit and has a lower CADR, we tested both devices in a 560 sq. ft. (52 m²) room.
After 60 minutes of operation at maximum speed, the Blueair 311i Max improved air quality by 89%, while the Levoit EverestAir improved it by 96%. This is a significant difference and a clear indicator of how much more powerful and efficient the Levoit EverestAir is.
Particle Removal Tests - Comparison
We placed the Blueair 311i Max and Levoit EverestAir in two separate tests and measured their performance using the Temtop laser particle meter.
Not only did the Levoit show better performance in the airborne particle removal test, but it also performed much better in the odor removal test, which I’m sure is due to its much higher-quality carbon filter.
Overall, it’s easy to conclude that the Levoit EverestAir is more efficient and achieved better results in performance tests than the Blueair 311i Max.
Noise Level Test – Comparison
When it comes to fan speeds, this is another area where the Levoit EverestAir is better optimized. It has five fan speeds, while the Blueair 311i Max has four.
Noise Levels - Comparison
Comparison of noise levels at all fan speeds between the Blueair 311i Max and Levoit EverestAir air purifiers.
We tested noise levels at all fan speeds using a specialized noise measurement tool. At the lowest speed, the Levoit EverestAir produces 40.1 dBA, while the Blueair 311i Max produces 40.2 dBA.
At maximum speed, the situation is quite different. The Levoit EverestAir produces 63.2 dBA, while the Blueair 311i Max is slightly quieter at 59.5 dBA. However, the Blueair produces a somewhat unusual noise at maximum speed, similar to an irritating buzzing sound.
| Fan Speed | Levoit EverestAir (dBA) | Blueair 311i Max (dBA) |
|---|---|---|
| Sleep Mode | 40.1 dBA | 40.2 dBA |
| Speed 1 (Low) | 41.2 dBA | 42.5 dBA |
| Speed 2 (Medium) | 46.5 dBA | 48.9 dBA |
| Speed 3 (High) | 53.3 dBA | 59.5 dBA |
| Speed 4 (Turbo) | 63.2 dBA | - |
Because of this, even though it’s slightly quieter than the Levoit at top speed, I would say the Levoit has a better-optimized motor and is generally better optimized for noise than the Blueair.
Operating Costs – Comparison
When it comes to power consumption, the Levoit can’t really compare to the Blueair, which uses a motor of just 30W. The Levoit EverestAir uses a much larger 70W motor.
If you were to run both devices at maximum speed, 24 hours a day for one month, your electricity bill would increase by about $5.34 with the Levoit and about $2.42 with the Blueair.
Monthly Power Consumption Cost - Comparison
Comparison of monthly power consumption costs for the Blueair 311i Max and Levoit EverestAir air purifiers at all fan speeds.
In addition to this, there is also the cost of replacement filters. Although they need to be replaced a bit more frequently in Blueair’s case, they are still more affordable in the long run.
| Fan Speed | Levoit EverestAir (W + $/month) | Blueair 311i Max (W + $/month) |
|---|---|---|
| Standby | 1.6W ($0.14) | 0.4W ($0.04) |
| Sleep Mode | 4.8W ($0.42) | 3.3W ($0.29) |
| Speed 1 (Low) | 9.3W ($0.82) | 4.8W ($0.42) |
| Speed 2 (Medium) | 13.9W ($1.22) | 12.7W ($1.11) |
| Speed 3 (High) | 23W ($2.02) | 27.6W ($2.42) |
| Speed 4 (Turbo) | 60.9W ($5.34) | - |
All of these are reasons for me to rate the Blueair 311i Max as a better-optimized air purifier for maintenance than the Levoit EverestAir.
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