Woot (Amazon Company) has a Winix C545 Wi-Fi Enabled 4-Stage Air Purifier w/ PlasmaWave (Refurb.), $69.99 Free Shipping for Prime Members, $6 shipping elsewise. Expires Soon - Highly Rated at 4.7 out of 5 stars over 8000 reviews. Next lowest $142

WiFi Enabled and Winix Smart App Compatibility Allows User to Monitor Indoor and Outdoor Air Quality, Set Timers, Schedule, and also acts as a Remote

Room Size:Our most compact air purifier ever without sacrificing performance. The C545 Air Purifier is AHAM certified for medium to large rooms up to 360 square feet in size.

Air Quality Sensor:The LED Air Quality indicator displays the quality of air in your home environment. When the unit senses an air quality change, it automatically adjusts the LED Indicator to display the respective air quality.

Auto Mode + Smart Sensors Auto mode auto-adjusts clean air delivery rate for Set-and-Forget convenience to provide fast, far-reaching 3-way air distribution.

4 Fan Speeds: From Quiet mode for whisper low and energy efficient cleaning to Turbo for ultimate performance

True HEPA Filtration: Captures 99.97%* of airborne allergens including; pollen, mold spores, dust, pet dander, microbes, and smoke (particles as small as 0.3 microns in size).