Household indoor air processing unit

The invention discloses a household indoor air processing unit which comprises an inhalable particle PM2.5 and carbon dioxide sensor, a rectangular shell with a digital display screen, a draught fan, a fan, an electric refrigerating/heating sheet, a dust filtering sheet and a static PM2.5 filtering sheet, wherein a household air quality processing device is externally connected with the inhalable particle PM2.5 and carbon dioxide sensor which is arranged inside a household air-conditioner; a fresh air inlet is formed in the right upper side of the device and is communicated with a pipeline which stretches out of a room; the fresh air inlet end inside the device is connected with the dust filtering sheet and the static PM2.5 filtering sheet in sequence; the draught fan which is taken as a power source for introducing fresh air is connected with the upper part inside the device; and the fan and the electric refrigerating/heating sheet which are communicated with an air outlet at the lower part at the front of the rectangular shell are connected with the lower part inside the device. The household indoor air processing unit is compact in structure and can be used for synchronously monitoring the concentration of the indoor inhalable particle PM2.5 and CO2 in real time; and fresh air is filtered and then fed into the room through the electric refrigerating/heating sheet, so that the cleanness and the comfort in the room are ensured, and the air ventilation and exchange in the room are effectively controlled.