Air treatment process: The air of the purification air conditioning system is generally filtered by three stages of primary, medium and high (or sub high) efficiency, and the primary and medium efficiency filtration, enthalpy and humidity treatment of the air are all borne by the combined air conditioner; the air supply outlet in the clean area of the tablet production area is the sub high efficiency air supply outlet; the room with large amount of powder dust in the tablet production area is equipped with a dedusting unit to remove the dust, and the room that is not suitable for return air (such as a small amount of dust Room with hot and humid gas) shall be equipped with medium efficiency purification exhaust system, and room with explosion-proof requirements shall be equipped with explosion-proof purification exhaust system. The air volume of room dust removal and exhaust is suitable for the air volume of air supply to ensure the positive pressure of clean room.<br>
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