My friend goes through security check in Tiananmen Square and works in the square. It's too hot now. Is there any way to keep her cool at work and prevent heatstroke?

Let me tell you, in Tiananmen Square, the surface temperature in summer is 67 degrees. It's hot, but if you pass the security check. There is a safety shed. There is air conditioning in it. Underground passage. Everything is getting better. Tiananmen Square is not good, so it is necessary to put a sunshade. Every post has heatstroke prevention drugs. That's the truth. If you want to cool off, don't do it. There is no other good way. Now the memorial hall is theirs.