What type of paint do I need to paint my bathroom?

We have paint from when we painted other rooms in our house, can I use this paint in the bathroom? The paint we have been using acrylic low sheen paint is that. What type of paint do I need to paint my bathroom?
not only flat finish, u can use eggshell,satin or semiglossWhat type of paint do I need to paint my bathroom?
You can use it in the bathroom. Just clean the walls with some TSP first.