
Coway Airmega 400S
Score: 92/100
Dyson Pure Cool Link TP02
Score: 72/100Rankings

The Coway Airmega 400S is a powerful, Wi-Fi-enabled smart air purifier for large spaces up to 3,120 square feet, featuring True HEPA filtration and app control. Its main trade-off is the high cost of annual filter replacements and its bulky size. It is ideal for users managing large open spaces who require powerful purification and remote monitoring capabilities.

The Dyson Pure Cool Link TP02 is a WiFi-enabled tower purifier fan that merges Air Multiplier bladeless cooling with advanced air purification. It features a sealed 360° Glass HEPA filter and activated carbon to capture 99.97% of particles down to 0.3 microns, while real-time sensors and app connectivity enable automated air quality management. While it offers strong smart features and safe cooling, its modest CADR rating and basic interface limit its appeal for large spaces or users seeking detailed metrics.
| Attribute | ![]() | ![]() |
|---|---|---|
1,560 sq_ftbest | 800 sq_ft | |
400 cfmbest | 70 cfm | |
| ↓ lower better | 22 dBbest | 41.1 dB |
12 monthsbest | 12 monthsbest | |
| ↓ lower better | 66 watts | 56 wattsbest |
5 | 10best | |
| ↓ lower better | 24.7 lbs | 7.9 lbsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Performance(3) | ||
Coverage Area (sq_ft) | 1560 sq_ft | 800 sq_ft |
Clean Air Delivery Rate (CADR) (cfm) | 400 cfm | 70 cfm |
Noise Level (dB) | 22 dB | 41.1 dB |
Filtration(1) | ||
Filtration Type | True HEPA | HEPA + Activated Carbon |
General(1) | ||
Warranty | 5 years | 2 years |
Power & Energy(2) | ||
Power Consumption (watts) | 66 watts | 56 watts |
Energy Efficiency Rating | Energy Star | Not Specified |
Design(1) | ||
Weight (lbs) | 24.7 lbs | 7.9 lbs |
Controls(3) | ||
Fan Speeds | 5 | 10 |
Control Interface | Touch/App | Digital Display |
Remote Control | true | false |


Professional reviewers consistently rank it as a class leader in air cleaning performance, awarding it top marks for CADR ratings and large-space coverage up to 3,120 square feet.
Consumers express strong satisfaction with rapid dust removal and smart integration, but complain about the financial impact of yearly filter replacements and occasional wireless pairing difficulties.

“breathe easy year-round”

“falls within smaller purifier range”



Professional reviewers consistently praise the TP02 for its innovative dual-function design that seamlessly combines bladeless cooling with genuine HEPA filtration and responsive smart sensors. Experts highlight its strong real-world particle removal capabilities and reliable app integration, though they frequently note limitations regarding its modest 70 CFM CADR rating and basic digital interface compared to newer iterations.
Everyday users overwhelmingly appreciate the unit's quiet operation during sleep hours and its ability to alleviate allergy symptoms in personal spaces like bedrooms and home offices. While many value the convenience of remote app control and scheduling, recurring complaints frequently center on intermittent connectivity drops and the financial burden of annual filter replacements.