Coway Airmega Halo Review Tests Sleep Features and Sensor Accuracy
Launched in late August, the Coway Airmega Halo weighs 9.7 pounds and is engineered for comprehensive room air purification, including sleep-friendly options. It occupies a space between the smaller Airmega 50/100 and the larger 350/450 models. To set it up, simply unscrew the base, take off the plastic covering from the filter, and plug it in—no app or Wi-Fi required. The device features a 360-degree air intake along with Coway's HyperVortex filtration system, utilizing a three-stage HEPA filter that captures 99.97% of particles as small as 0.3 microns. In sleep mode, it runs at a quiet 17 decibels. It can purify a room of 1,898 square feet in one hour, but is best suited for spaces around 474 square feet.
Key facts
- The Coway Airmega Halo was released at the end of August and weighs 9.7 pounds
- It uses Coway's HyperVortex filtration system and a 360-degree air intake
- The IEST-certified three-stage HEPA filter claims to capture 99.97 percent of particles down to 0.3 microns
- Coway claims 17 decibels in sleep mode; turbo mode measured around 75 decibels
- In a sealed-tent smoke test, smoke visually cleared in one minute and 21 seconds but the unit never entered turbo automatically
- A personal monitor read PM2.5 at 46.5 micrograms per cubic meter, an AQI equivalent of 128, while the purifier showed blue
- Coway rates the Halo to purify a 1,898-square-foot room in an hour, though ideal four to five air changes per hour suit about 474 square feet
- Joe Haycock of Fresh Air Concepts said sensor placement may explain discrepancies between stand-alone monitors and built-in purifier sensors
Entities
Artists
- Joe Haycock
Institutions
- Coway
- WIRED
- Fresh Air Concepts
Locations
- United States