Oreck Air cleaners are built with your needs in mind.  It is believed that the air in your home is 5 times more polluted then the air out side.  "The air in your home has particles in it, such as pollen, dust, pet dander, and smoke are light weight and can stay suspended in the air." (e. g. Oreck web site) Oreck has two systems for you to compare and see which one is best for your needs. The
 .Truman Cell technology or True HEPA filters.
1. True HEPA filters. ".....captures 99.97% of dust, allergens, smoke, pet dander and pollen particles as small as .3 microns from the air that passes through its filter." (e. g. Oreck web site)
2.Truman Cell "Oreck's patented Truman Cell® is an EP (Electrostatic Precipitator) filter that captures dust and allergens from the air that passes through its filter, pulling them out of the air like a magnet." (e. g. Oreck web site) 
So go to their site and compare the two for yourself.  Your lungs will be glade you did! 

Von Bro'