Sharp FP-P35CX HEPA Air Purifier for $158 with a $50 MIR and free shipping.
Features:
* Washable Pre-Filter traps dust, dirt and other airborne particles.
* True HEPA Filter captures 99.97% of particles as small as 0.3 microns that pass through it, including pollen, mold, pet dander and dust. The special Antimicrobial Layer provides extra protection against viruses.
* Sensor detects household dust particles in the air.
* Manual Operation lets the user choose among 3 fan speeds, plus Pollen and Quick Clean modes.
* Automatic Operation uses the Sensor to automatically adjust fan speed for the degree of cleaning required.
* Library Quiet™ operation is ideal for bedrooms and living rooms. Silent Mode is as quiet as 14 decibels, about the volume of rustling leaves. These are among the quietest Air Purifiers with a True HEPA filter available anywhere.
* Inverter Technology proves greater energy efficiency as well as a wider range of fan speeds from Silent to Maximum.
* Energy Efficient operation means it’s easy on your wallet. With its advanced technologies, it is 35% more energy efficient than standard models, making it ENERGY STAR® qualified.1
The energy efficiency of this ENERGY STAR qualified model is measured based on a ratio between the model's CADR for Dust and the electrical energy it consumes, or CADR/Watt.
* Ultra Long Life HEPA Filters require changing only once every five years3 so operating costs are low.
* Stylish Design looks great in any room of the home or office.
* Clean Filter Indicator lights when it's time to clean the Pre-Filter.
Sharp FPP35CX Air Purifier: Compare Prices, View Price History and Read Reviews at NexTag $50 MIR
Sharp FP-P35CX HEPA Air Purifier $108 AR + FS 
