I have a Shop-Vac air cleaner, Have had it since christmas used it once and it seems to be doing a good job still too early to tell, it is built for a small wood shop when you turn it on with dust in the air you can see the dust being sucked into the cleaner. It is portable and can be used any where that there is electric. the cost was $135, as I said i have only used it twice since I got it due to the weather here I do not have heat in my shop.
IKE