Decontaminating an ambulance is a process. The first step is cleaning to remove debris. Only after a surface has been cleaned can it be decontaminated using one of three types of disinfection. The first, or highest level, is sterilization. Sterilization completely eliminates all organisms and is used for equipment that will be reprocessed (or reused) and comes into contact with mucus membranes, such as a laryngoscope blade. Chemical or steam-based sterilization can be used, but the correct procedure must be followed. Disposable items don’t need a high level of sterilization.