An air cleaning unit for the air cleaning room is provided to maximize the reliability of the usage by purifying the air discharged with the dust or the foreign material of the sprayed product. An air cleaning unit for the air clean room removes the dust or the foreign material which is absorbed in the product in the air clean room by blowing with the uninterruptible ionization clean air. The air cleaning unit for the air clean room comprises the outlet(23) and the inlet. The inlet(11) and the outlet(12) in which the filter is mounted are formed in the main body(10) In order to discharge the air by the blower(15) with suction and discharge. The nozzle duct(20) is installed in the width direction of the product. The supply path(21) is formed at the bottom surface of the nozzle duct and is connected to the delivery path of the main body by the width direction. The outlet converts the supplied air into the uninterruptible ionization clean air with the ion generator(22).
