By far the most popular type of vacuum cleaner in the U.S., upright vacuum cleaners are wheel-mounted push-pull machines that use their powerful suction to remove dirt and allergens from your floors. Especially effective on carpeting, today's upright vacuums have a variety of extra features that bolster your cleaning experience. These include dirt sensors, extra-wide cleaning paths, bagged or bagless options, clean air exhaust, and special tools for removing dust and pet hair.