Old Type Answer Machine Dust From Old Washing Machine?

Dust from old washing machine? - old type answer machine

I have a washing machine and then took the old man had tons of black and gray dust on the floor. I cleaned as best I could. I had the opportunity, everything clean. What kind of powder is as follows. Is it dangerous? I can not move the puck. That is why I have so many headaches and allergy attacks? I searched for answers online, but found nothing.