Core Points - Zhengzhou Metro has opened 35 civil air defense service points for citizens to escape the heat for free, addressing the urgent need for cooling during the ongoing high temperatures [3][4] - Citizens can locate these cooling points using the Zhenghao Ban APP by searching for "Civil Defense Map" [3][6] Group 1 - The 35 civil air defense service points are strategically located across various metro lines, including Line 1, Line 2, Line 4, Line 5, Line 6, Line 7, Line 8, Line 10, and Line 12, providing extensive coverage [4] - Each cooling point is equipped with essential amenities such as tables, chairs, reading shelves, entertainment facilities, and heat prevention supplies [4][5] - The service points also offer practical items like hot water, sewing kits, raincoats, umbrellas, and charging banks to meet various passenger needs [5] Group 2 - The cooling points are designed to be clean and comfortable, providing a refreshing environment for citizens, especially those working outdoors [5][7] - Citizens have expressed a desire for further optimization of services, including more seating, reading materials, and extended operating hours [9] - Suggestions for additional amenities include free access to drinking water, magazines, and games to enhance the experience at the cooling points [9]