Right now on Woot.com (an Amazon owned company) you can grab this Winix AM90 Wi-Fi Air Purifier, 360 sq. ft. for $109.99. And if you have Amazon Prime it ships for FREE!
Room Size 360 Sq. Ft.: AHAM Verified for 5 clean air changes per hour in 360 sq. ft. room. Suitable for medium to large size living spaces
The Smarter Air Purifier: Control and monitor your unit anytime from anywhere by instantly accessing your unit with the Winix Smart App through the convenient Wifi feature
Washable Fine Mesh Pre-Filter: The first line of defense against the largest airborne particles found indoors
Activated Carbon Filter: Reduces VOCs and household odors from cooking, pets, and smoke. It is designed to catch airborne particles found indoors, which also helps prolong the True HEPA Filter life
True HEPA Filter: 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)
PlasmaWave® Air Cleaning Technology: Creates Hydroxyls to neutralize Bacteria and Influenza A virus (H3N2)
Air Quality Indicator: Visual indicator displays real-time air quality in the room with LED lights
Smart Sensors + Auto Mode: Built-in air quality sensor measures and adjusts fan speed in real-time
Ultra-Quiet: Nearly silent on slowest speed (27dB)
Light Automated Sleep Mode: Unit automatically activates its quiet, energy-efficient Sleep Mode when room is darkened and returns to Auto Mode in the presence of light
Tested and Trusted: This unit is proven dependable and efficient by being AHAM Verified, Energy Star Certified, and UL Certified
Energy Efficient: Energy Star Certified for low energy consumption, resulting in reduced operating costs
Filter Replacement Indicator: When the filters need to be replaced, the Filter Replacement Indicator LED will illuminate