Which sentences describe the cyclone device?
A cyclone device accumulates fine particulates from the air by making a dirty air stream flow in a spiral path inside a cylindrical chamber. It consists of several long and narrow fabric filter bags suspended upside-down in a large enclosure. When dirty air enters the chamber, the larger particulates strike the chamber wall and fall into a conical dust hopper at the bottom. Fans blow dirt-filled air upward from the bottom of the enclosure, trapping dirt particles inside the filter bags and releasing clean air from the top. The top of the chamber has an outlet that lets out cleaned air.