A vacuum cleaner is a household appliance used for cleaning dust, dirt, and debris from floors and surfaces. It works by creating suction, which pulls in air and dirt through a nozzle and into a bag or canister. The most common types of vacuum cleaners are upright, canister, and handheld. They can also come with various attachments for cleaning carpets, upholstery, and hard-to-reach areas. Vacuum cleaners have evolved over the years, with newer models boasting advanced features such as HEPA filters for trapping allergens and dirt sensors for detecting areas that need more cleaning. They are essential tools for maintaining a clean and healthy home environment.