I sprayed mine a fire hose from about 20 feet away with about 100 psi at the nozzle.Oh and the toughbook was open. I hit the screen first it flipped backward slammed down and shut. Then in slid like 40 feet. So i went up to it almost positive i destroyed the screen.... Nope! the whole thing was fine other then the scratches from the ground. as far as computing power goes.. well lets not embarrass them.