The Coway Airmega 50 is the smallest air purifier from this brand. I tested it a while ago, and in this article, I will compare it to the legendary Levoit Core 300.
Both are small air purifiers with low CADRs and room coverage, but with some interesting features and good results in our tests.
The Coway Airmega 50 covers rooms of up to 104 sq. ft. (9.7 m²), while the Levoit Core 300 covers rooms of up to 219 sq. ft. (20 m²).
What I like about the Coway is the night light, air quality sensor, and auto mode features.
The Levoit is, on the other hand, a more traditional air purifier without smart features. However, there is a smart version of the Core 300 called the Core 300S, and I have also reviewed it here.
Our Verdict
In general, while both air purifiers are small, compact, and intended for small spaces, the Levoit Core 300 is still slightly larger, more powerful, and has a higher CADR.
Besides, it produced better results in our airborne particle removal tests, performed better in the smoke test, and offers more third-party filter options.
So, the Levoit Core 300 would be a better buying option than the Coway Airmega 50.
If you have any questions about these two air purifiers, please leave a comment in the comment section below the article.
Specs: Levoit Core 300 Vs Coway Airmega 50
| Product Image |  15% off |  |
| Manufacturer | Levoit | Coway |
| Model | Core 300 | Airmega 50 |
| Dimensions (inches / cm) | 8.7 x 8.7 x 14.2 inches (22 x 22 x 36 cm) | 6.7 x 6.7 x 12.6 inches (17 x 17 x 32 cm) |
| Weight (pounds / kg) | 7.5 lb (3.4kg) | 3.4 lbs (1.6 kg) |
| Clean Air Delivery Rate (CADR) | 141 CFM (240 mÂł/h) | 66.7 CFM (113.3 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) | 104 sq. ft. (9.7 m²) |
| Performance Ratings Performance Ratings Score Summary: 8.3 - Average Score (101 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 | Pre-filter, True HEPA Filter, and Activated Carbon Filter | Pre-Filter, HyperCaptive Filter, and Deodorization Filter |
| Filter Replacement Indicator | Yes | Yes |
| Filter Life | 6-8 months | up to 8 months |
| Power Consumption
Power Usage Summary: Our extensive testing of 101 air purifiers revealed the following power consumption insights:
Check out our power consumption calculator tool. | 45W | 14W |
| Operating Costs Ratings Operating Costs Ratings Score Summary: 8.9 - Average Score (101 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 | 4 - Sleep Mode, Speed 1, Speed 2, and Speed 3 |
| Air Quality Sensor Air Quality Sensor Summary: Out of 101 air purifiers tested, only 51 have the air quality sensor. | No | Yes |
| Air Quality Indicator | No | Yes |
| Auto Mode Auto Mode Summary: Out of 101 air purifiers tested, only 52 have auto mode functionality. | No | Yes |
| Smart App Smart App Summary: Out of 101 air purifiers tested, only 30 have smart app functionality. | No | No |
| Voice Control Voice Control Summary: Out of 101 air purifiers tested, only 29 have voice control functionality. | No | No |
| Other Features | Display LockDisplay OffTimer | Control Panel LockTimer |
| Noise Level (low – high) | 40.7 – 64.9 dBA | 40 – 57.1 dBA |
| Noise Ratings Noise Ratings Score Summary: 9.2 - Average Score (101 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 | Bedrooms Small Spaces Dust Allergies Children's Rooms | Bedrooms Low Energy Cost Small Spaces |
| Warranty | 2-year | 1-year |
| In-Depth Review | Levoit Core 300 | Coway Airmega 50 |
| Price |
Performance Test – Comparison
Although the Levoit Core 300 has more than double the room coverage of the Coway Airmega 50, we still managed to test these two in one room of identical size.
In a room of 194 sq. ft. (18 m²), we placed these two air purifiers in two separate tests and measured how much they would improve air quality in just 60 minutes.
Particle Removal Tests - Comparison
We placed the Levoit Core 300 and Coway Airmega 50 in two separate tests and measured their performance using the Temtop laser particle meter.
The results: the Levoit Core 300 improved air quality by 93%, while the Coway Airmega 50 improved it by 90%.
However, in a room of 320 sq. ft. (30 m²), the Levoit Core 300 improved air quality by 92%, which is proof of its real power.
Overall, the Levoit Core 300 showed much better performance in our airborne particle removal tests, which is something I expected due to its larger CADR and larger filter media.
Noise Level Test – Comparison
These two air purifiers have four fan speeds, but the Coway Airmega 50 has auto mode as an additional working mode.
We tested their noise levels at each fan speed and compared the results (check the chart below).
Noise Levels - Comparison
Comparison of noise levels at all fan speeds between the Levoit Core 300 and Coway Airmega 50 air purifiers.
At the lowest speed, the Coway Airmega 50 produces a sound of 40 dBA, while the Levoit Core 300 produces a sound of 40.7 dBA.
However, at maximum speed, the Levoit is much louder. It produces a sound of 64.9 dBA, while the Coway Airmega 50 produces a sound of 57.1 dBA.
| Fan Speed | Coway Airmega 50 (dBA) | Levoit Core 300 (dBA) |
|---|---|---|
| Sleep Mode | 40 dBA | 40.7 dBA |
| Speed 1 (Low) | 41.2 dBA | 46.4 dBA |
| Speed 2 (Medium) | 49.4 dBA | 52.9 dBA |
| Speed 3 (High) | 57.1 dBA | 64.9 dBA |
After comparing noise levels at each fan speed, I would say that the Coway Airmega 50 is better optimized for noise.
Operating Costs – Comparison
As for operating costs, the Levoit Core 300 uses a 45W motor, while the Coway Airmega 50 uses a motor of just 14W.
This means that if you were to use these two air purifiers at their maximum speeds, 24 hours a day, for one month, your electric power bill would increase by $3.81 in the case of the Levoit Core 300 and by about $1.01 in the case of the Coway Airmega 50.
Monthly Power Consumption Cost - Comparison
Comparison of monthly power consumption costs for the Levoit Core 300 and Coway Airmega 50 air purifiers at all fan speeds.
Besides, there is also the cost of replacement filters, which need to be replaced approximately every 8 months for both air purifiers.
However, the filter on the Coway is much smaller, and in practice, it may last slightly less long than the filter on the Levoit.
| Fan Speed | Coway Airmega 50 (W + $/month) | Levoit Core 300 (W + $/month) |
|---|---|---|
| Standby | 0W ($0) | 0.8W ($0.07) |
| Sleep Mode | 0.8W ($0.07) | - |
| Speed 1 (Low) | 2.8W ($0.25) | 29.4W ($2.58) |
| Speed 2 (Medium) | 6.2W ($0.54) | 31.4W ($2.75) |
| Speed 3 (High) | 11.5W ($1.01) | 43.5W ($3.81) |
Also, the price of the replacement filter for the Coway is slightly higher.
Even though it uses a more powerful motor, the higher CADR and more affordable filter are what make the Levoit Core 300 more affordable for maintenance in the long run.
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