SS or Tube Amp for Sawdust Environment?

I've got a combo painting studio/wood shop in the back and, while the sawdust output doesn't approach that of a typical furniture shop, I'm somewhat concerned about the negative effects such dusts and water based paint sprays lingering in the air might have upon electronics such as amps/computers, etc. Would sort of like to take this opportunity to put together a small sound system for the shop to try out one of the smaller/inexpensive tube or hybrid integrateds. Has anyone been in this situation or have any advice to lend here? Thanks.