Abstract: A tubular container mounted in series with a compressed air line. The container includes a hollow cylindrical body, a hollow cylindrical screen member mounted inside the body and means supporting the hollow cylindrical screen in communication with an entry end of the body. A plug of porous water absorbent material surrounds the screen member. The plug of porous material absorbs droplets of water in the stream of compressed air passing through the tubular container and provides a surface from which the water evaporates as the compressed air passes through the plug.