(57) A nozzle unit (100), having a brush body (110), a brush cover (130) mounted on the
brush body, a suction port (115) formed on the brush body, and a hair removal unit
(150), is provided. The hair removal unit (150) includes at least two hair removal
members (151, 153) that are disposed apart from each other; and the at least two hair
removal members rotate with respect to the brush body (110) when the nozzle unit (100)
moves forward and backward, alternately contacting a surface (50) being cleaned, thereby
removing dirt or fibrous contaminants from the surface.
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