Subjective experiments with task conditioning systems, 3DU^+, PEM and TU were carried out.Through the experiments, these all systems were effective in thermal comfort. Comfort sensation votes were between -0.4 and -0.7 for male, and -0.3 and -0.4 for female these were more than equivalent to the standard condition. Comfort sensation votes for air flow were also high in all systems and there were little individual differences. Subjects individually controlled each system to realize preferred environment. Parts to which the subjects wanted to diffuse air were different for each systems.
