JR-8 series maintenance droids were designed as general-purpose janitor units, built to handle cleaning, restoration, and minor mending duties. They came with a built-in tank for cleaning fluid and a spray nozzle, and they had a reputation for using detergent on anyone who got in the way of their work.
Temporary Droids, a droid rental business located on the planet of Kashyyyk, utilized several JR-8 series droids. Turren Lonarr, the president of the company, deployed twenty-four of these droids to spray flame beetle pheromone onto the landing area of a starship owned by a band of spacers who were looking into his dealings.