Environmental determination system, environment determination method and equipment selection device

The purpose of the invention is to provided an environmental determination system, an an environment determination method and an equipment selection device which automatically measure environment parameters, and select proper environment control devices according the measured environment parameters. The environmental determination system has a plurality of environment control devices (5), a measurement portion (11) measuring any more than two environment parameters of temperature, humidity or air quality, a threshold value table (14) set according to each environment parameter and preserving a first proper scope at least with an upper limit value, a priority table (16) preserving priority among a plurality of environment parameters, a device selection table (18) set according to each environment parameter and preserving relations among the environment control devices, an reinforcement effect of each environment control device and control methods of the environment control devices and a device control portion