教室是为学生提供学习的场所，其室内环境在满足学生基本热舒适的同时还应保

Classroom learning is to provide a place for students to meet their students' basic indoor environmental thermal comfort should also ensure effective learning efficiency. <br>Based on previous studies, this paper, classroom conditions, concentrations of carbon dioxide at a comfortable temperature changes affect the relationship of learning efficiency is studied. <br>5 different CO2 concentrations (600ppm, 2500ppm, 3000ppm, 4000ppm and 4500ppm) at student learning efficiency was tested, and the impact of CO2 on learning efficiency is a statistical analysis method evaluation by using subjective questionnaires and neurobehavioral, and experimental study controlled analog classroom. <br><br>The results showed that: Voting tested students show their satisfaction with various concentrations of indoor environmental conditions in general, but not satisfied with the rate of increase in the concentration of a big increase, but not significant statistically. <br>Under different CO2 concentrations, correct rates for different test items, reaction time and learning efficiency indicator there are some differences with the change of CO2; <br>different CO2 concentration differences on cognitive tests of learning depends on the type of task. <br>Key words: students; CO2 concentration in the room; learning efficiency; subjective evaluation; experimental study

Classrooms are places for students to learn, and their indoor environment should ensure efficient learning efficiency while meeting the basic heat and comfort of students.<br>On the basis of the previous research, the influence of the change of carbon dioxide concentration in classroom on learning efficiency under comfortable temperature conditions is studied.<br>The learning efficiency of students at 5 different CO2 concentrations (600ppm, 2500ppm, 3000ppm, 4000ppm and 4500ppm) was tested, and the effect son of CO2 on learning efficiency was analyzed statistically, using subjective questionnaires and neurobehavioral evaluation methods, and simulating controlled laboratory studies in classrooms.<br><br>The results showed that the participants' votes showed that their satisfaction with the indoor environment of various concentrations was general, but the dissatisfaction rate increased significantly with the increase in concentration, but there was no statistical significance.<br>Under the condition of different CO2 concentration, there are some differences in the correct rate, reaction time and learning efficiency index of different test items with the change of CO2.<br>The difference in the effect son of different CO2 concentrations on learning cognitive ability tests depends mainly on the type of task.<br>Keywords: primary and secondary school students; indoor CO2 concentration; learning efficiency; subjective evaluation; experimental research

Classroom is a place for students to learn. The indoor environment should not only meet the basic thermal comfort of students, but also ensure efficient learning efficiency.<br>On the basis of previous research, this paper studies the relationship between the change of carbon dioxide concentration in classroom and learning efficiency under comfortable temperature.<br>Five different CO2 concentrations (600ppm, 2500ppm, 3000ppm, 4000ppm and 4500ppm) were used to test the learning efficiency of students, and the influence of CO2 on learning efficiency was statistically analyzed. By using the methods of subjective questionnaire survey and Neurobehavioral Evaluation, and simulating the controllable experimental study in the classroom.<br>The results showed that: the students' voting showed that their satisfaction of indoor environment under various concentration conditions was general, but the dissatisfaction rate increased with the increase of concentration, but there was no statistical significance.<br>Under different CO2 concentration conditions, the accuracy, reaction time and learning efficiency of different test items vary with the change of CO2;<br>The difference of the effect of different CO2 concentration on the test of learning cognitive ability mainly depends on the task type.<br>Key words: primary and secondary school students; indoor CO2 concentration; learning efficiency; subjective evaluation; experimental research<br>