Tools include the vacuum cleaner, broom and mop. Bot is a robot that cleans the lab with its vacuum cleaner and control arm. This was the first-ever clean-air upright cleaner. The formula used to compute airwattage differs between vacuum cleaner manufacturers. Tim also hires a cleaner, Barbara, to clean the flat. A vacuum cleaner that will last 14 years. Later revisions came to be known as the Kirby Vacuum Cleaner. Gary offers Kit an opportunity to present a marketing pitch for a vacuum cleaner. Booth also may have coined the word "vacuum cleaner". In mid-2014, Dyson personally appeared in Tokyo to introduce his "360 Eye" robotic vacuum cleaner. Walt plants a replica of the ricin cigarette in Jesse's vacuum cleaner, which Jesse finds. The Nilfisk vacuum cleaner of 1910, weighed 17.5 kilos. He worked in restaurants and as a carpet cleaner. The car was equipped with an oil bath air cleaner. Some believe thorium is key to developing a new generation of cleaner, safer nuclear power.