Vacuum pumps remove gas from sealed spaces, creating a vacuum for diverse applications like HVAC servicing (removing moisture/air from A/C), manufacturing (semiconductors, bulbs, composite molding, vacuum coating), medical (suction, sterilization, mass spectrometers), food packaging, and scientific research (electron microscopy, space simulation). They enable processes like filtration, drying, degassing, distillation, and material handling across industries from automotive to aerospace.