Campus fresh air system solutions

The high number of students in primary and secondary schools and kindergarten classrooms, insufficient oxygen, high carbon dioxide concentration, poor ventilation, increasing haze and renovation pollution, resulting in children's lack of concentration, fatigue, drowsiness and flu viruses and other epidemic fast, will affect the health of children.The high number of students in primary and secondary schools and kindergarten classrooms, insufficient oxygen, high carbon dioxide concentration, poor ventilation, increasing haze and decoration pollution, resulting in children's lack of concentration, fatigue, drowsiness and flu virus and other epidemic fast, will affect the health of children.