This time, I’ll compare two rectangular air purifiers: the Levoit Vital 100S and the Coway Airmega 150.
They share several similar features and specifications, but only one stands out as the better choice.
The Coway Airmega 150 has a slightly higher CADR but lacks smart features. On the other hand, the Levoit Vital 100S includes smart features but doesn’t use a True HEPA filter.
We tested their efficiency, noise levels, and power consumption to determine which one offers the better value.
Our Verdict
Overall, these are two fantastic air purifiers, and whichever you pick, you won’t go wrong.
However, the Levoit Vital 100S is more affordable, uses cheaper replacement filters, delivers outstanding performance in our tests, and comes equipped with plenty of smart features.
These are the reasons I would choose the Levoit Vital 100S as the better buying option.
On the other hand, the Coway Airmega 150 is better optimized for noise and also highly efficient, but it’s slightly more expensive, doesn’t have a pellet-based carbon filter (the U.S. version), and lacks smart features.
If you have any questions about these two air purifiers, feel free to ask in the comments section below.
Specs: Coway Airmega 150 Vs Coway AP-1512HH
| Product Image |  14% off |  |
| Manufacturer | Levoit | Coway |
| Model | Vital 100S | Airmega 150 |
| Dimensions (inches / cm) | 12.8 x 6.4 x 16.1 inches (32.5 x 16.3 x 41 cm) | 13.4 x 6.5 x 18.5 inches (34 x 16.5 x 47 cm) |
| Weight (pounds / kg) | 7 lb (3.2 kg) | 12.1 lb (5.5 kg) |
| Clean Air Delivery Rate (CADR) | 141 CFM (240 mÂł/h) | 152.8 CFM (259.6 mÂł/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) | 237 sq. ft. (22 m²) |
| Performance Ratings Performance Ratings Score Summary: 8.3 - Average Score (91 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, Main Filter, and Activated Carbon Filter | Pre-filter, Carbon Filter, and True HEPA Filter |
| Filter Replacement Indicator | Yes | Yes |
| Filter Life | 9-12 months | up to 12 months |
| Power Consumption
Power Usage Summary: Our extensive testing of 91 air purifiers revealed the following power consumption insights:
Check out our power consumption calculator tool. | 35W | 35W |
| Operating Costs Ratings Operating Costs Ratings Score Summary: 9 - Average Score (91 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 | 5 – Sleep Mode, Low Mode, Medium Mode, High Mode, and Turbo Mode | 3 - Silent Mode, Speed 1, and Speed 2 |
| Air Quality Sensor Air Quality Sensor Summary: Out of 91 air purifiers tested, only 44 have the air quality sensor. | Yes | Yes |
| Air Quality Indicator | Yes | Yes |
| Auto Mode Auto Mode Summary: Out of 91 air purifiers tested, only 45 have auto mode functionality. | Yes | Yes |
| Smart App Smart App Summary: Out of 91 air purifiers tested, only 26 have smart app functionality. | Yes | No |
| Voice Control Voice Control Summary: Out of 91 air purifiers tested, only 25 have voice control functionality. | Yes | No |
| Other Features | Display OffDisplay LockTimer | Washable Pre-filter |
| Noise Level (low – high) | 40.5 – 65.4 dBA | 40.1 – 59.2 dBA |
| Noise Ratings Noise Ratings Score Summary: 9.3 - Average Score (91 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 Smart Home Integration | Bedrooms Allergies Small Spaces Dust Low Energy Cost |
| Warranty | 2-year | 3-year Limited |
| In-Depth Review | Levoit Vital 100S | Coway Airmega 150 |
| Price |
Performance Test – Comparison
We placed both air purifiers in rooms similar to their recommended coverage and measured their efficiency using a Temtop laser particle meter.
The Coway Airmega 150 has a CADR of 152.8 CFM (259.6 mÂł/h), while the Levoit Vital 100S has a CADR of 141 CFM (240 mÂł/h).
This means the Coway is suitable for rooms up to 237 sq. ft. (22 m²), while the Levoit covers spaces up to 219 sq. ft. (20 m²).
Particle Removal Tests - Comparison
We placed the Levoit Vital 100S and Coway Airmega 150 in two separate tests and measured their performance using the Temtop laser particle meter.
In a 194 sq. ft. (18 m²) room test, we measured how much each purifier improved air quality after running at maximum speed for 60 minutes.
The Levoit Vital 100S improved air quality by 95%, while the Coway Airmega 150 achieved a 94% improvement.
The results are nearly identical, so this round is a draw.
However, the US version of the Coway Airmega 150 uses a fibrous (non-pellet) carbon filter, whereas the Levoit Vital 100S features a pellet-based carbon filter, making the Levoit slightly more effective at neutralizing unpleasant odors.
Noise Level Test – Comparison
When it comes to noise levels, the first thing to note is that the Levoit Vital 100S has five fan speeds, while the Coway Airmega 150 has three.
We tested the noise levels at all speeds using a specialized noise meter.
The results show that the Coway Airmega 150 produces 40.1 dBA at the lowest speed, while the Levoit Vital 100S produces 40.5 dBA.
Noise Levels - Comparison
Comparison of noise levels at all fan speeds between the Levoit Vital 100S and Coway Airmega 150 air purifiers.
At maximum speed, the Coway Airmega 150 reaches 59.2 dBA, and the Levoit Vital 100S reaches 65.4 dBA.
| Fan Speed | Coway Airmega 150 (dBA) | Levoit Vital 100S (dBA) |
|---|---|---|
| Silent Mode | 40.1 dBA | - |
| Sleep Mode | - | 40.5 dBA |
| Speed 1 | 42.3 dBA | - |
| Speed 1 (Low) | - | 42.7 dBA |
| Speed 2 | 59.2 dBA | - |
| Speed 2 (Medium) | - | 51.6 dBA |
| Speed 3 (High) | - | 58.7 dBA |
| Speed 4 (Turbo) | - | 65.4 dBA |
These tests clearly show that the Coway is better optimized for noise.
However, the Levoit offers more fan speeds, giving you greater flexibility to find the setting that best suits your needs.
Operating Costs – Comparison
Regarding power usage, both air purifiers use a 35W motor.
If operated at maximum speed 24 hours a day for an entire month, your electricity bill would increase by about $2.66 for the Levoit and $2.52 for the Coway.
Monthly Power Consumption Cost - Comparison
Comparison of monthly power consumption costs for the Levoit Vital 100S and Coway Airmega 150 air purifiers at all fan speeds.
Additionally, both models require replacement filters roughly once per year.
| Fan Speed | Coway Airmega 150 (W + $/month) | Levoit Vital 100S (W + $/month) |
|---|---|---|
| Standby | 0.2W ($0.02) | 1.5W ($0.13) |
| Sleep Mode | - | 3.2W ($0.28) |
| Silent Mode | 2.6W ($0.23) | - |
| Speed 1 | 5.9W ($0.52) | - |
| Speed 1 (Low) | - | 6.5W ($0.57) |
| Speed 2 | 28.7W ($2.52) | - |
| Speed 2 (Medium) | - | 10.5W ($0.92) |
| Speed 3 (High) | - | 17.6W ($1.54) |
| Speed 4 (Turbo) | - | 30.3W ($2.66) |
However, the Levoit’s replacement filters are slightly cheaper, making it the more affordable option overall.
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