1. Improve air quality. The air purification system can remove particles, harmful gases and pollutants in the carriage and improve air quality. This is especially important for passengers in enclosed spaces for long periods, reducing harmful substances inhaled into the respiratory tract and reducing the risk of allergies, asthma and other respiratory-related diseases.

2. Supply a comfortable environment: The air purification system can remove the odor in the carriage and keep the indoor air fresh. Passengers will feel more comfortable when they travel in the train.

3. Prevent the spread of infectious diseases: High-speed train passengers are dense, which makes it easy to cause the spread of bacteria and viruses. The air purification system can filter and kill bacteria and viruses in the air, reduce the risk of spreading infectious diseases in the carriage, and ensure the health and safety of passengers and staff.

4. Improve image and reputation. The application of air purification systems in bullet trains shows the concern for the health and comfort of passengers, demonstrates the high-quality service and responsibility of the passenger company, which helps to improve the image and reputation.