For chimney cleaning, each technician mainly uses a flue brush with rods and extension rods, a triple filtered HEPA vacuum, a drop cloth to keep your floor clean, and many different kids of hand brushes. At Chimney Doctors, we use a top fan, which creates a vacuum inside the chimney to blow the dust outside your chimney top into the atmosphere. For a level two inspection, a "chimscan" camera is used to get a 360-degree view of the inside of your chimney.