As one of its daily deals, Home Depot offers the Winix Air Cleaner with PlasmaWave Technology for $149 with free shipping. (Amazon charges the same.) That's the lowest price we could find by $16. It features three stage filtration and and air quality sensor.

Home Depot also offers the Winix 50-Pint Dehumidifier for $179 with free shipping. That's the lowest price we could find by a buck. It features auto defrosting control and auto shutoff. Both deals end today.