A vacuum cleaner is an electrical appliance designed to remove dirt, dust, debris, and other particles from floors, upholstery, and other surfaces by creating suction. The vacuum cleaner typically consists of a motor that generates airflow, a filter to capture dust, and a nozzle or brush head to direct the suction power. Depending on the type, vacuum cleaners can be upright, canister, robotic, handheld, or stick models, with varying features such as HEPA filtration for allergen control, adjustable suction power, and attachments for cleaning different surfaces or hard-to-reach areas. They are widely used in households, offices, and industrial settings to maintain cleanliness and hygiene.