Next month I am doing a powder photography shoot with several dancers and another photographer. The studio space is about 500 sf with doors and plenty of ventilation.

I know that the powder from the color runs are bad (based on the article from LensRentals), I think the color runs use a corn starch based mix. Instead we are looking at unbleached flour (we have seen videos of sessions where they use flour). Given that the particle size is significantly larger than corn starch, am I risking my camera? I don't think it will be an issue because the flour dust seems to settle quickly.