10. The controlling method in claim 9 , further comprising a step j: activating a carbon dioxide monitoring procedure at the controlling apparatus when the person enters the indoor space, wherein the carbon dioxide monitoring procedure controls one of the indoor apparatuses for adjusting an amount of carbon dioxide of the indoor space.
9. A controlling method for environmental comfort degree, used by a controlling system, the controlling system comprising a plurality of indoor apparatuses, a plurality of sensors and a controlling apparatus operatively connected with the indoor apparatuses and the sensors, the controlling method comprising: a) sensing if a person enters an indoor space; b) obtaining a plurality of environment parameters indoor or outdoor by the sensors when the person enters the indoor space; c) calculating a current comfort-index of the indoor space based on the environment parameters at the controlling apparatus; d) calculating a target comfort temperature adjustment value for reaching a best comfort-index based on the current comfort-index; e) calculating a target comfort humidity adjustment value based on the target comfort temperature adjustment value; and f) controlling the indoor apparatuses based on the target comfort temperature adjustment value and the target comfort humidity adjustment value at the controlling apparatus for an indoor environment of the indoor space to reach a target temperature and a target humidity; g) determining if the controlling system is shut down; h) determining if the person in the indoor space is left; and i) re-executing the step b to the step f if the controlling system is not shut down and the person stays in the indoor space.