Abstract: A steam vaporizer for domestic use having a base for supporting a removable reservoir and steam chamber including a steam directing conduit with selectively positionable nozzle, said conduit and nozzle having double walled construction to maintain exposed parts at a low temperature. Air circulation is provided from the base into the steam chamber across the boiler to circulate the steam out through the nozzle. A cup-shaped boiler forming a portion of said steam chamber with said conduit and nozzle being removable from said base to expose the boiler for cleaning purposes. The boiler is provided with a drain to permit intermittent flushing of accumulated residue.