The new Ambi Pur Renov'Air , from Sara Lee Household and Bodycare, is the first automatic air freshener with an alternating two-step cycle that continuously renews the air at home. A gearbox mechanism within the unit, the components of which are all made of DuPont Delrin acetal resin, is used to control the smooth, regular diffusion of the fragrance. The material's dimensional stability and low friction and wear lead to the quiet and reliable operation of the air freshener, which was launched in June 2008 and is presently available in Spain, Portugal, Italy, France and Greece. The diffuser and its components were jointly designed by Sara Lee and Zobele España (Barcelona, Spain), part of the Zobele Group. The Ambi Pur Renov'Air renews the air at home in two stages: the first neutralises the bad odors already present in the house, the second infuses the cleaned air with a natural and fresh fragrance (consumers currently have the choice of either wild eucalyptus or wild lavender). Each stage lasts 60 minutes, with a choice of three levels of fragrance intensity for the second stage - for high intensity, the fragrance is automatically sprayed every ten minutes in the course of one hour, for medium intensity every 15 minutes, and for low intensity every 30 minutes.