Well if you've traveled to Japan you've likely seen one of these.
The number one selling air cleaner in Japan.

I'm just back to the US and was going to buy now that BestBuy has the newer models. Low and behold $50 off. Maybe ends today though. I bought 2.

Cheers, Scho

http://www.bestbuy.com/site/Sharp+-+...ster&cp=1&lp=1