The characteristics of green buildings are energy conservation and environmental protection: Green buildings adopt energy-saving and environmental protection technologies and measures in various aspects such as design, construction, use, and maintenance, reducing resource consumption and environmental pollution. For example, using energy-saving materials, energy-saving equipment, energy-saving systems, etc. to reduce the energy consumption of buildings; Adopting renewable energy, natural lighting, natural ventilation, etc. to reduce the impact of buildings on the environment. Healthy and comfortable: Green buildings adopt technologies such as natural lighting, ventilation, energy saving materials, etc., providing people with a healthy and comfortable indoor environment. For example, adopting natural lighting and ventilation to reduce the energy consumption of artificial lighting and ventilation; Using energy-saving materials to reduce indoor pollution; Adopting a healthy and comfortable design to meet people's usage needs