GDV systems work by introducing clean, uncontaminated air into the working environment and exhausting the contaminated air out. This process involves fans, ducts, and air filters to ensure a continuous flow of clean air, thereby diluting the concentration of airborne nanoparticles. The design and efficiency of GDV systems depend on various factors, including the size of the workspace, the nature of the nanoparticles, and the level of contamination.