The utility model discloses an integrative unit of dedicated family formula fresh air conditioning of passive energy efficiency building building, outside quick -witted coil pipe, the air conditioning machine, exhaust fan and forced draught blower in first valve, second valve, third valve, heat transfer device, air conditioning, one of them of heat transfer device is connected with second valve and exhaust fan respectively entry and export, another to the entry and export respectively with air conditioning in the entry and the first valve of quick -witted coil pipe be connected, the entry of quick -witted coil pipe still is connected with the third valve simultaneously in the air conditioning, the export of quick -witted coil pipe is connected with the forced draught blower in the air conditioning, quick -witted coil pipe is connected and is controlled its refrigeration or heat in air condensing units and the air conditioning. The utility model discloses multi -functional air conditioning unit with an organic whole such as collection new trend, purification, refrigeration (heat), dehumidification can provide cleanliness factor height, indoor living environment that the comfort level is good for the user.