Have this Druckluftreiniger bought to wegzupusten fine dust particles in macro photography. Unfortunately intermittently as much moisture comes out with that then also still clearly visible leaves as a white spot on dark material traces. For spraying a computer keyboard that may probably be fine, but for my purposes not need to. I would have expected that as compressed air comes out and nothing else ... Not to use Actually ... A star for the something comes out forward. :(