Woot offers Hunter HP670 True HEPA Digital Tall Tower Air Purifier (Choose Color) for $41.99 (orig. $129.99). Free shipping for Prime Members.

Product Description:
Improve your indoor air quality in style with the Hunter HP670 True HEPA Air Purifier. Available in neutral color options, this air purifier is guaranteed to clean your air all while complimenting the décor.
This large tower air purifier features True HEPA filtration and EcoSilver® pre-filter to rid the air of dust, pet dander, hair, mold spores, bacteria, and viruses.

• Silver nanoparticles in the EcoSilver® pre-filter prevent the growth of microorganisms on the filter, including bacteria and viruses
• Coconut carbon in the pre-filter neutralizes harmful VOCs (volatile organic compounds) and household odors from cooking, cleaning, smoking, and pets
• True HEPA filter removes up to 99.97% of airborne particles as small as 0.3 microns including smoke, dust, pollen, pet hair and dander, mold spores, and dust mite debris
• ENERGY STAR rated for lower energy consumption
• 360-degree air intake
• Soft-touch digital control panel 
• 3 fan speeds so you get the cleaning power you want when you want it
• Sleep mode with whisper-quiet operation for uninterrupted sleep
• Timer with 2, 4, and 8-hour intervals
• Filter replacement indicator to remind you when it's time to change the filters
• Optional LED accent light for ambiance or nightlight

Specifications:

• Recommended Room: Size 196 Sq. Ft.
• CADR Ratings Smoke: 127, Dust: 135, Pollen: 120
• Sound Level: 37-58 dB(A)
• Product Dimensions: 8.98 x 8.98 x 22.64 inches
• Product Weight: 13.23 pounds
• HEPA Filter Replacement: Change every 6 months, or more often depending on air quality & environmental factors
• Pre-Filter Replacement: Change every 3 months, or more often depending on air quality & environmental factors