The term 'Carpet Sweeper' refers to a device used to clean carpets. The acronym VAC stands for Vacuum Cleaner, which is a type of carpet sweeper. Vacuum cleaners use suction to remove dirt and debris from carpets, making them easier to clean. Vacuum cleaners are typically powered by electricity or batteries and come in a variety of sizes and shapes. They are an essential tool for keeping carpets clean and free of dust and allergens.