What should I do?

DearXDJM,

I am an engineer. Right now, my new boss ask me a lot technician and hourly student job. I am in the training period, sometimes, he think I am not busy, ask to wash something for work, but this job is for hourly student do. And they hire many student which not work when they stay in lab. I am not happy when he ask me to do sucha job (like wash something for work). Please advise me what should I do? reject, accept or.....?