What I find most interesting about the comparison between the Coway Airmega 150 and the AirFanta 3Pro is that these two devices are almost entirely different, built on completely different philosophies.
The Coway Airmega 150 is a modern air purifier, available in several pastel colors, that fits perfectly into almost any home.
The AirFanta 3Pro, on the other hand, is a DIY-style air purifier. It isn’t as attractive or as modern-looking as the Coway, but it delivered fantastic results across all our tests.
The AirFanta 3Pro has no features, while the Coway Airmega 150 has a few, which is yet another thing that sets the two apart.
Our Verdict
This was a very intense comparison, and deciding which device is the better choice was not easy at all.
On one side, we have an air purifier from a proven brand, the Coway Airmega 150, and on the other, a DIY air purifier, the AirFanta 3Pro.
If I were looking for an air purifier for a smaller room, I would probably choose the Coway Airmega 150 first.
However, in all other cases, the AirFanta 3Pro is my absolute choice and the winner of this comparison. It’s much more powerful, has as many as four filters, is simple and affordable to maintain, and is a pure refreshment on the air purifier market.
If you have any questions about these two devices, feel free to leave a comment below the article.
Specs: Coway Airmega 150 Vs AirFanta 3Pro
| Product Image |  |  |
| Manufacturer | Coway | AirFanta |
| Model | Airmega 150 | 3Pro |
| Dimensions (inches / cm) | 13.4 x 6.5 x 18.5 inches (34 x 16.5 x 47 cm) | 12.6 x 12.6 x 12.6 inches (32 x 32 x 32 cm) |
| Weight (pounds / kg) | 12.1 lb (5.5 kg) | 6 lb (2.7 kg) |
| Clean Air Delivery Rate (CADR) | 152.8 CFM (259.6 m³/h) | 413 CFM (702 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. | 237 sq. ft. (22 m²) | 645 sq. ft. (60 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, Carbon Filter, and True HEPA Filter | Pre-filter, HEPA and Activated Carbon Filter |
| Filter Replacement Indicator | Yes | No |
| Filter Life | up to 12 months | 6-12 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. | 35W | 38W |
| 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 | 3 - Silent Mode, Speed 1, and Speed 2 | 6 - Speed 1, Speed 2, Speed 3, Speed 4, Speed 5, and Speed 6 |
| Air Quality Sensor Air Quality Sensor Summary: Out of 101 air purifiers tested, only 51 have the air quality sensor. | Yes | No |
| Air Quality Indicator | Yes | No |
| Auto Mode Auto Mode Summary: Out of 101 air purifiers tested, only 52 have auto mode functionality. | Yes | No |
| 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 | Washable Pre-filter | Travel Ready |
| Noise Level (low – high) | 40.1 – 59.2 dBA | 40.1 – 62.5 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 Allergies Small Spaces Dust Low Energy Cost | Living Rooms Allergies Large Spaces Dust Quiet Operation |
| Warranty | 3-year Limited | 1-year |
| In-Depth Review | Coway Airmega 150 | AirFanta 3Pro |
| Price |
Performance Test – Comparison
Many might think that this comparison isn’t realistic, especially if we consider that the AirFanta 3Pro has a CADR of 413 CFM (702 m³/h) and covers rooms up to 645 sq. ft. (60 m²), while the Coway Airmega 150 has a CADR of just 152.8 CFM (259.6 m³/h) and covers rooms up to 237 sq. ft. (22 m²).
Still, I received a few requests to compare these two air purifiers, and I wanted to help those who are uncertain which one to pick.
The fact is that the AirFanta 3Pro uses a lower-grade HEPA filter than the one in the Coway. However, for home use, that may not be the most important factor, and efficiency and CADR tend to matter much more.
Particle Removal Tests - Comparison
We placed the Coway Airmega 150 and AirFanta 3Pro in two separate tests and measured their performance using the Temtop laser particle meter.
The AirFanta 3Pro improved air quality by about 96% in a room of 560 sq. ft. (52 m²), while the Coway Airmega 150 improved air quality by about 94% in a room of 194 sq. ft. (18 m²).
All in all, I would say that the AirFanta 3Pro is a much more powerful air purifier, which also delivered better results on our performance tests.
One more thing: I purchased a HEPA + carbon filter for the AirFanta 3Pro, which is why this model also performed better at neutralizing bad odors and smoke.
Noise Level Test – Comparison
When it comes to noise levels, the first thing you will notice is that the AirFanta 3Pro has six fan speeds, while the Coway Airmega 150 has three.
However, one advantage the Coway has is its auto mode feature, made possible by a built-in air quality sensor.
Noise Levels - Comparison
Comparison of noise levels at all fan speeds between the Coway Airmega 150 and AirFanta 3Pro air purifiers.
We tested noise levels at all fan speeds using a specialized noise measurement tool. At the lowest speed, both devices produce a sound of 40.1 dBA.
At maximum speed, though, the situation is somewhat different. The Coway Airmega 150 produces 59.2 dBA, while the AirFanta 3Pro produces 62.5 dBA.
| Fan Speed | AirFanta 3Pro (dBA) | Coway Airmega 150 (dBA) |
|---|---|---|
| Silent Mode | - | 40.1 dBA |
| Speed 1 | 40.1 dBA | 42.3 dBA |
| Speed 2 | 40.3 dBA | 59.2 dBA |
| Speed 3 | 43.1 dBA | - |
| Speed 4 | 54.5 dBA | - |
| Speed 5 | 59.4 dBA | - |
| Speed 6 | 62.5 dBA | - |
All in all, even though the AirFanta has more fan speeds, I wouldn’t say it is better optimized for noise. However, these two air purifiers achieved nearly identical results on this test.
Operating Costs – Comparison
In addition to all the tests, we also tested the power consumption and operating costs of these two devices.
The first thing worth noting is that both devices use well-optimized motors. The Coway Airmega 150 has a 35W motor, while the AirFanta 3Pro uses a 38W motor.
Monthly Power Consumption Cost - Comparison
Comparison of monthly power consumption costs for the Coway Airmega 150 and AirFanta 3Pro air purifiers at all fan speeds.
However, it should be noted that the AirFanta has a far better power-to-CADR ratio than the Coway.
If you were to run both devices at max speed, your electricity bill would increase by about $2.52 for the Coway and about $2.89 for the AirFanta 3Pro. As you can see, the difference is negligible.
| Fan Speed | AirFanta 3Pro (W + $/month) | Coway Airmega 150 (W + $/month) |
|---|---|---|
| Standby | 0W ($0) | 0.2W ($0.02) |
| Silent Mode | - | 2.6W ($0.23) |
| Speed 1 | 2.6W ($0.23) | 5.9W ($0.52) |
| Speed 2 | 2.7W ($0.24) | 28.7W ($2.52) |
| Speed 3 | 5.2W ($0.46) | - |
| Speed 4 | 14.1W ($1.24) | - |
| Speed 5 | 23.7W ($2.08) | - |
| Speed 6 | 33W ($2.89) | - |
Beyond electricity costs, there is also the cost of replacement filters, which need to be changed on average once a year for both devices.
All in all, I would say that the AirFanta 3Pro is more affordable to maintain on an annual basis than the Coway Airmega 150.
Leave a Reply