Simple question, mainly asking for your collective experience.
I am planning a short-film in a post-apocalyptic scenario which is supposed to be very dusty with a thick-looking atmosphere. Part of it is easy to achieve with haze or fog, but I was wondering about those little specks, kind of like ash blowing in the wind.
How would one safely achieve something like this? Is it a good idea to actually just blow around some burnt paper (essentially ashes)?