A method of controlling an electronic apparatus is provided. The method includes the steps of receiving measurement values for the state of air displayed on a plurality of external electronic apparatuses from each of the plurality of external apparatuses, calculating rates of change of the measurement values for each of the plurality of external electronic apparatuses based on the received measurement values, identifying external electronic apparatuses of which differences of the calculated rates of change belong to a predetermined range among the plurality of external electronic apparatuses, correcting the measurement values received from at least one external electronic apparatus among the identified external electronic apparatuses such that the measurement values received from the identified external electronic apparatuses become the same as one another, and transmitting information related to the corrected measurement values to the at least one external electronic apparatus.