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Title: A 3M scam
Review: The unit works great on dust, pollen and pet hair. Can be noisy on high speed. Filters go fast if a smoker is in your house. After a short time it blows out ash tray smelling air. The product was relatively inexpensive $120 or so but 3M is reaping a windfall with the high price of their filters. I can't find them anywhere but on line at an outrageous price. I also have an Oreck electrostatic unit, you just clean the metal filter case. Never have to buy filters. It cost 3-4 times more but never have to buy a terribly overpriced filter. Shame on you 3M.
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