Can mild smog take your baby out?

I suggest you try not to take your baby out in foggy weather. Because although it is mild smog, it is not good weather after all. Babies should pay more attention to keep warm when they are young, but their resistance is poor. It is easy to catch a cold and go out with a fever in foggy days, which increases the factors of illness. So try not to take the children out even if you wear more clothes.