It was the way some artists found to depict not only the working people in their working place, and the aesthetics that could be found there, but also and most importantly, to depict their situation in that place. It was a way to denounce and repudiate that inhuman situation.
Answer: Yes it is very safe. Just make sure that no one is allergic to it, because if so they may go into a sever allergic reaction. Other then that you should be good. Please give me the brainiest answer? Hope this helped :)