A method of transmitting a control command of a terminal apparatus, the method comprising: storing position information of at least one air cleaning apparatus (20, 20-1, 20-2, 20-4, 20-5, 20-6) in an indoor space; acquiring region-by-region air pollution information of the indoor space acquired while a moving cleaning apparatus moves in the indoor space, wherein the moving cleaning apparatus acquires the region-by-region air pollution information based on an amount of dust drawn in by the moving cleaning apparatus or a sensing value of a dust sensor provided in the cleaning apparatus; acquiring, based on the acquired region-by-region air pollution information of the indoor space and the position information of the at least one air cleaning apparatus (20, 20-1, 20-2, 20-4, 20-5, 20-6) in the indoor space, a control command for controlling an operation of the at least one air cleaning apparatus (20, 20-1, 20-2, 20-4, 20-5, 20-6) to supply clean air to a polluted region among regions (a2, a5) of the indoor space, wherein the at least one air cleaning apparatus (20, 20-1, 20-2, 20-4, 20-5, 20-6) is placed in the polluted region; and transmitting the acquired control command to the at least one air cleaning apparatus (20, 20-1, 20-2, 20-4, 20-5, 20-6), characterized in that the method further comprises displaying on a display of the terminal apparatus, based on the acquired region-by-region air pollution information of the indoor space and the position information of the at least one air cleaning apparatus (20, 20-1, 20-2, 20-4, 20-5, 20-6) in the indoor space, guide information suggesting a change in a position of the at least one air cleaning apparatus (20, 20-1, 20-2, 20-4, 20-5, 20-6). storing position information of at least one air cleaning apparatus (20, 20-1, 20-2, 20-4, 20-5, 20-6) in an indoor space; acquiring region-by-region air pollution information of the indoor space acquired while a moving cleaning apparatus moves in the indoor space, wherein the moving cleaning apparatus acquires the region-by-region air pollution information based on an amount of dust drawn in by the moving cleaning apparatus or a sensing value of a dust sensor provided in the cleaning apparatus; acquiring, based on the acquired region-by-region air pollution information of the indoor space and the position information of the at least one air cleaning apparatus (20, 20-1, 20-2, 20-4, 20-5, 20-6) in the indoor space, a control command for controlling an operation of the at least one air cleaning apparatus (20, 20-1, 20-2, 20-4, 20-5, 20-6) to supply clean air to a polluted region among regions (a2, a5) of the indoor space, wherein the at least one air cleaning apparatus (20, 20-1, 20-2, 20-4, 20-5, 20-6) is placed in the polluted region; and transmitting the acquired control command to the at least one air cleaning apparatus (20, 20-1, 20-2, 20-4, 20-5, 20-6), characterized in that the method further comprises displaying on a display of the terminal apparatus, based on the acquired region-by-region air pollution information of the indoor space and the position information of the at least one air cleaning apparatus (20, 20-1, 20-2, 20-4, 20-5, 20-6) in the indoor space, guide information suggesting a change in a position of the at least one air cleaning apparatus (20, 20-1, 20-2, 20-4, 20-5, 20-6).