We recommend that you clean up any heavy organic build-up. Make sure that all surfaces are dry. Also, it is helpful to open any cabinets, drawers, or storage compartments. Close any window, blinds, and curtains. Make sure AC, fans, or ventilation within the treatment area is turned off or set to recirculate the air. Once you start the treatment, immediately leave the area and close off the space for the duration of the treatment cycle. This includes access to pets.