Coway Airmega AP-1512HHS vs Winix 5520

Winix 5520, mainly because its performance is AHAM Verifide at 253 CFM smoke CADR for 392 sq ft, and it costs less while drawing 50 W. Coway Airmega AP-1512HHS answers with a 3 year warranty against 2 years, Google Home support and an Eco Mode that switches the fan off in clean air.

Very similar. Both use a washable pre-filter, an activated carbon odor layer and True HEPA, and both include an optional ionizer stage (PlasmaWave on Winix 5520) that testing bodies generally recommend leaving off. Coway Airmega AP-1512HHS rates its filters at about a year; Winix does not publish an interval.

Winix 5520 is AHAM Verifide at 253 CFM for 392 sq ft. Coway Airmega AP-1512HHS is not AHAM Verifide, so its 788 sq ft claim reflects the manufacturer's own testing at a lower air change rate, and its 210 CFM figure is lower than the Winix in any case.

Winix 5520 has the lower quoted noise floor at 27 dB and draws 50 W. Coway Airmega AP-1512HHS peaks at 53.8 dB, draws 80 W and is not Energy Star certified, though its Eco Mode can cut consumption to almost nothing when the room stays clean.

Coway Airmega AP-1512HHS works with both Amazon Alexa and Google Home through the IoCare app. Winix 5520 documents Alexa support through the Winix Smart app, with Google Home unconfirmed. Neither is HomeKit certified nor listed in the Matter certified product database.

Buyers who want the longest warranty of the two, Google Home control and the Eco Mode that idles the fan when the air is clean, in a compact bedroom-friendly body. If certified airflow and a lower price lead the list, Winix 5520 is the more rational choice.