Home Dustbusting drones and 3D food printers: Eight gadgets that could change your home forever Flying mini-robot cleaners, expanding walls that filter the air and 3D food printers could all be in our homes soon, according to the judges at the Electrolux Design Lab. Tweet by Mark Prigg 19 October 2013 3F vacuum cleaner The 3F vacuum cleaner can change form and expand to suit the task required. This remote controlled and programmable cleaner can be used in compact or wide mode. It also scents the air according to the fragrance of your choice. first previous 4/8 next last Tweet You have to login or register to comment.