Second skin uses single use tattoo needles and a Type B sterilizer for the rest of the equipment.Type B autoclave,is similar to gravity displacement autoclaves in that they use steam under pressure to sterilize contaminated items.They have a pump that creates a vacuum in the chamber to ensure air is removed from the sterilizing chamber before steam enters.The advantage is that is faster and more thorough steam penetration throughout the entire load.In addition to shortening the required time for sterilization,type B autoclaves address the issue of wet instrument packs at the end of the cycle by having a post-sterilization vacuum cycle that facilitates drying by removing steam at the end of the portion of the cycle.