Coway Airmega 200M vs Winix 5530

The Winix 5530 outperforms the Coway Airmega 200M overall. Its particle filtration is stronger, its room coverage is broader, and it holds up better at quieter fan speeds. Both models are whisper-quiet on their lowest settings and get quite loud at full power, but the 5530 edges out the Coway at both ends of the range. It's also more compact and, unlike the Coway, offers app connectivity for remote control and air quality monitoring. Both units have automatic fan adjustment and optional ionization systems that can be turned off.