Today is soooo hot, it's 35C and I don't have an AC.

Today I checked the window AC, it's not cheap compared to normal separated AC, and it's not obviously advanced compared to the separated one. So I hesitated on purchase.

However, I can at least make myself feel cool by using menthol. Several years ago I figured out the recipe for making a cloned cooling spray. Today the food grade ingredient arrived. Hopefully it won't kill me.