What is the best air purifier to get? My room is so dusty!?

I’d be will to go 0 as I can see that’s how much an Ionic Breeze costs. I’ll spend good money to get a good product, but I don’t want to get ripped off either.

My room is 13′x11′, so thats roughly 143 sq feet. For some reason, dust just grows in my room–moreso than any other room in the house by at least a factor of 100. And I noticed how quickly my A/C filter gets dusty. What gives?

Anyways, I’d love to hear your own personal experiences dealing with dust, and what you reccomend. I can’t believe I’m breathing all that crap in my lungs.