TFD Model Steam Air sterillizer is enginneered for the counterpressure sterilization of aqueoussolutions in sealed containers such as PVC, non-PVC packed LVPs parenterals, vials, PFS syringes, etc. It adopts pressured steam and air mixture sterilization process, The air circulation fan and air deflector mix the pure steam and air together to ensure sterilization temperature uniformity.Coiled pipes at the liner of chamber, is for drying and cooling of the loads, by connecting steam and cooling water. The hot air flows through the loads, while moisture on the surface evaporated, then cooling water in the coiled pipes can reduce the temperature rapidly.During the whole working process, the unique counter pressure control can prevent sealed container from deforming or cracking due to excessive pressure difference between the inside and outside.