Air purifier?

Question:I really need an air purifier for my dusty, windowless bedroom, but most are really expensive. I saw the Oreck one on sale at JC Penney for a more affordable price. Is it a good product? If not, what brands are better and/or cheaper?

Answers:
Look for an ionizer--it works better than an air purifier. Just shop around. I found one at k-mart. there are ones that plug into the wall. they aren't that expensive