This low-profile machine uses dual HEPA and charcoal filters to capture particles, pollen and fumes. A pollution sensor communicates indoor air quality in real-time. And it syncs up with an app that includes indoor and outdoor air quality monitoring, scheduling, smart controls and Alexa pairing—all the while tracking filter performance and notifying you when it's time to swap them out.
Airmega air purifier,
$236 by Conway