Coway and Winix are major rivals in the air purifier market. Both brands are reliable, produce high-quality air purifiers, and offer great value for the price.
In this article, I compare the Coway Airmega 150 and the Winix 5510.
Although the Coway is slightly smaller than the Winix, I believe this comparison will be both interesting and useful—especially since I’ve already received a few questions about how these two devices compare.
The Coway Airmega 150 has a CADR of 152.8 CFM (259.6 mÂł/h), while the Winix 5510 has a CADR of 253 CFM (430 mÂł/h).
Both models include some advanced features, but only the Winix supports smart app and voice control.
Keep reading to find out which one performed better in our tests.
Our Verdict
After analyzing all the key aspects, test results, and specifications of these two air purifiers, I would say that the Winix 5510 is the better buy.
The Winix 5510 offers a higher CADR, features a more effective carbon filter, works with a smart app, and is better optimized for noise.
Still, if you decide to go with the Coway for any reason, you won’t go wrong either, but overall, the Winix 5510 simply has more to offer.
If you have any questions about these two air purifiers, feel free to leave a comment below the article.
Specs: Coway Airmega 150 Vs Coway Airmega 100
| Product Image |  |  |
| Manufacturer | Coway | Winix |
| Model | Airmega 150 | 5510 |
| Dimensions (inches / cm) | 13.4 x 6.5 x 18.5 inches (34 x 16.5 x 47 cm) | 13.6 x 8.3 x 22.2 inches (34.6 x 21.1 x 56.4 cm) |
| Weight (pounds / kg) | 12.1 lb (5.5 kg) | 13.3 lb (6 kg) |
| Clean Air Delivery Rate (CADR) | 152.8 CFM (259.6 mÂł/h) | 253 CFM (430 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. | 237 sq. ft. (22 m²) | 392 sq. ft. (36 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 | Pre-filter, Carbon Filter, and True HEPA Filter | Pre-filter, Activated Carbon Filter, True HEPA Filter, and PlasmaWave |
| Filter Replacement Indicator | Yes | Yes |
| Filter Life | up to 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 | 65W |
| 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 | 3 - Silent Mode, Speed 1, and Speed 2 | 5 - Sleep Mode, Speed 1, Speed 2, Speed 3, and Speed 4 |
| 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. | No | Yes |
| Voice Control Voice Control Summary: Out of 91 air purifiers tested, only 25 have voice control functionality. | No | Yes |
| Other Features | Washable Pre-filter | PlasmaWaveLight Sensor |
| Noise Level (low – high) | 40.1 – 59.2 dBA | 40.2 – 65.7 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 Allergies Small Spaces Dust Low Energy Cost | Pets Living Rooms Kitchens Allergies Smoke Dust Neutralizing VOCs |
| Warranty | 3-year Limited | 2-year |
| In-Depth Review | Coway Airmega 150 | Winix 5510 |
| Price |
Performance Test – Comparison
I already mentioned at the beginning of this comparison that the Winix 5510 is a much more powerful device than the Coway.
It covers rooms of up to 392 sq. ft. (36 m²), while the Coway Airmega 150 is suitable for spaces of up to 237 sq. ft. (22 m²).
We tested their airborne particle removal capabilities to see which model performs more efficiently.
Particle Removal Tests - Comparison
We placed the Coway Airmega 150 and Winix 5510 in two separate tests and measured their performance using the Temtop laser particle meter.
It’s important to note that we tested them in two rooms of different sizes.
In the test performed in a 194 sq. ft. (18 m²) room, the Coway Airmega 150 improved air quality by 94%.
In the test performed in a 320 sq. ft. (30 m²) room, the Winix 5510 improved air quality by 96%, which is a slightly better result than the Coway achieved.
It’s easy to conclude that both air purifiers performed very well in our airborne particle removal test, but the Winix once again proved why it’s higher rated and confirmed that CADR is an important metric.
P.S. Both air purifiers operated for 60 minutes at their maximum speed settings during the tests.
It’s easy to conclude that both air purifiers performed very well in our airborne particle removal test, but the Winix once again proved why it’s higher rated and confirmed that CADR is an important metric.
P.S. Both air purifiers operated for 60 minutes at their maximum speed settings during the tests.
Noise Level Test – Comparison
When it comes to noise, the first thing worth mentioning is that the Winix has more fan speeds — and that’s what makes it the better-optimized air purifier in terms of noise control.
The Winix offers five fan speeds and an auto mode, while the Coway has only three fan speeds and an auto mode.
We tested the noise levels at all speeds. At the lowest settings, both air purifiers are very quiet — the Coway produces 40.1 dBA, while the Winix registers 40.2 dBA.
Noise Level Comparison
Comparing the Coway Airmega 150 and Winix 5510 noise levels at minimum and maximum speeds.
However, at maximum speed, the Winix is slightly louder, producing 65.7 dBA compared to the Coway’s 59.2 dBA.
Although the numbers favor the Coway Airmega 150, I still believe you’ll be more satisfied with the Winix 5510 in terms of overall noise experience.
Why? Because it offers a much better CADR-to-noise ratio, and thanks to its five fan speeds, it’s easier to fine-tune to your preferred noise level.
Operating Costs – Comparison
When it comes to operating costs, the first thing to look at is power consumption. The Coway Airmega 150 uses a 35W motor, while the Winix 5510 is equipped with a 65W motor.
If you were to run both air purifiers at their maximum speeds, 24 hours a day for one month, your electricity bill would increase by about $4.68 for the Winix and about $2.52 for the Coway.
Power Usage Comparison
Comparing the Coway Airmega 150 and Winix 5510 power use at minimum and maximum speeds.
In addition to electricity costs, there’s the expense of replacement filters, which last around 12 months for both models and are reasonably priced.
Overall, I’d say the operating costs for these two air purifiers are quite similar — and you won’t break the bank with either one.
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