What helpful of bugs are within my room? I didn't notice them until I started cleaning the corners. They are...

I didn't notice them until I started cleaning the corners. They are mostly on clothes and most seem to be dead, but I'm not sure. They enjoy dark-brown to black heads and buoyant brown/tan bodies. I am going to be leaving the house for 4 days, but my grandfather's bedroom is connected to mine. Is in attendance something that I can set off and quit that will not be harmful to him? BTW, he does not own to go through my room to get hold of to his, but his bed is right by my door.
i think millipedes


Those are probaly centipeds or those things that are related to them but they are not harmful basically spray the room with manoeuvre and close the door and everything will be a Ok

Bye
Answers:    Boric Acid will kill most bugs, it's cheap, and won't injure humans. Look for roach killer at the stores. Should merely be a couple dollars.