1.** Purity:** supply water should have a high degree of purity, does not contain harmful microorganisms, minerals, sediments and chemicals, so as not to contaminate the material into the sterilizer.
2.**Condensate: **supply water should not be too much condensate to prevent the steam generation and delivery process to block the pipeline or valve, affecting the normal operation of the sterilizer.
3.** Hardness: **supply water hardness should be moderate, excessive hardness may lead to scale buildup inside the equipment, affecting heat transfer and sterilization effect.
4.**Chlorine content: **Chlorine content should be controlled within the appropriate range to avoid corrosive effects on the equipment, and to ensure that the steam does not contain harmful gases.
5.**pH value:** The pH value of the supply water should be within a certain range to ensure the stability of the steam generation and delivery, to avoid acid-base reaction affecting the durability of the equipment.