I bought this a week before I shut down my computer consulting firm. It has never been used. It has a Type 2 filter so it can pick up dust particles and even copier toner. It has 4 different extensions so you can get into small areas. It's pretty compact, it's self contained and they work pretty well for cleaning anything (i.e. drywall from sawing a hole in the wall). I paid $350 on sale from 3M, I will sell it for $150 shipped to your door UPS Overnight. The type is a "Service Vacuum" and the model number is 497. Please let me know and we can go from there.