Refrigerator having air processing apparatus

A refrigerator having an air processing apparatus comprising:

• a first cabinet comprising a storage compartment defining a space in which objects for refrigerating or freezing are stored;
• and a first door for opening and closing the storage compartment;
• a first cooling unit comprising a first refrigerant pipe defining a circulation path of a refrigerant;
• a first compressor to circulate the refrigerant along the first refrigerant pipe;
• a first condenser to condense the refrigerant by exchanging heat between the refrigerant exhausted from the first compressor and an external air of the storage compartment;
• a first pressure regulator to lower a pressure of the refrigerant having passed the first condenser;
• and a first evaporator configured to vaporize the refrigerant having passed the first pressure regulator by absorbing heat from an internal air of the storage compartment;
• a second cabinet mounted at one surface of the first cabinet and comprising an inlet hole and an outlet hole;
• a blower fan provided in the second cabinet to blow air drawn into the inlet hole towards the outlet hole;
• a filter unit to filter the air drawn into the second cabinet via the inlet hole;
• a first PCB comprising a first control unit implemented to control at least one of the first compressor and the first pressure regulator;
• a second PCB comprising a second control unit implemented to control the blower fan;
• a first mounting unit provided at one surface of the first cabinet and defining a predetermined space which can accommodate the first PCB;
• and
• a second mounting unit provided at one surface of the second cabinet and defining a predetermined space which can accommodate both the first PCB and the second PCB.