Kelley, I have that info on the Air Cleaner you wanted.
I use a Holmes HAP240 model Air Purifier/Ionizer. Mine is probably a little larger than my hobby room really needs, but hey, it works! It cost me about $20.00 or so US at Sears Roebuck about 8-10 years ago. It takes filter cartridges that usually come on packs of two for about 5 dollars. The first few times, I was changing the cartridge pretty frequently; later, they lasted longer as the room cleared up. It runs fairly quietly too, I barely even know it's there.
Anyway, I hope this helps. Good luck with what you go with!