Questionnaire survey was performed to staffs of educational boards and teachers at public elementary schools with and without cooling equipments located in 22 cities of Kanto areas. The ratio of schools installed with cooling equipments were about 12% due to the small educational budget, etc. The differences of thermal environments in classrooms at schools with cooling equipments were more significant than schools without cooling equipments because environmental controls of cooling equipments largely depend on teachers’ subjective judgments. These differences were recognized by teachers except educational boards. The guidelines for environmental control were required in schools installed cooling equipments.
