I'm building a new shop - actually, the building is up, waiting for final electrical and a little bit of interior finish work before starting to setup shop. The shop is relatively small - 26 x 22. Because it's sitting on a side hill, there's a decently deep crawlspace available with about 5 feet of headroom on the lower end of the foundation. I've been toying with the idea of putting my compressor and dust collector (2hp HF with Wynn Env nano filter and cyclone separator) down there and eliminating the noise both produce from the working area. Also, eliminates exposed ductwork through the shop. Plenty of room to run ducting and piping for air where it will be needed. Doing some homework, there seems to be a difference of opinion on whether or not the slightly negative air pressure that would be produced is going to be a problem. The shop is heated initially by electric radiators - a small woodstove will be added eventually, though. The DC is only used when using stationery tools - table saw, bandsaw, planer, jointer, etc (I rarely do any flatwork any longer, but new cabinets, shelving and work benches will be on the menu soon), when sanding on the lathe (probably the most frequent use) or cleaning up after turning. I really wanted the compressor out of the shop, but in thinking it through, decided to move the DC as well. Any one have thoughts on why it may not be a good idea? Other concerns I may be missing?