Before using the filter element, the filter element must be packed well (the sterilization filter element must be vacuum packed), and then stored in a cool, clean and dry environment to avoid sunlight, rain or close to heat sources;

After the filter element is used, the filter element shall be washed and sterilized, and then immersed in fresh 5% NaCl solution for short-term storage, or the filter element shall be dried for long-term storage;