A canister vacuum is a type of vacuum cleaner that features a separate canister unit connected to a flexible hose. This design allows for easy maneuverability, making it ideal for cleaning various surfaces, including carpets, hardwood floors, and upholstery. The canister typically houses the motor and dust collection bag or bin, providing powerful suction. Canister vacuums often come with a variety of attachments, such as crevice tools and brush heads, to tackle different cleaning tasks. They are known for their versatility and efficiency, making them a popular choice for both residential and commercial cleaning needs.