An iron comprising a water tank, a blast unit, a steam generating unit and a steam spraying unit. The blast unit has a first inlet and a first outlet, the first inlet is connected to the inlet-pipe of the inlet of the water tank, wherein the blast unit generates steam rapidly in a limited space. The steam generating unit has a second inlet and a second outlet, the second inlet being connected to the inlet-pipe of the inlet of the water tank, wherein the steam generating unit heats the water to generate steam. The steam spraying unit connects the first and second outlet, has plural steam apertures, and sprays steam. Because a blast unit is arranged for the rapid steam generation in a limited space, the iron of the present invention obviates the disadvantages in the existing irons and improves steam blast strength, intensity at a low cost.