①Before first use, and after every use, clean and sterilize all pump parts that come incontactwith milk. Always use drinking quality water for cleaning. ③Separate all parts that can be sterilized at high temperature and clean them with a safety cleaner. ④After cleaning and sterilisation is complete carry out the correct assembly ⑤Check that the diaphragm and duckbill valve are intact, breakage will affect suction. ⑥After assembly, use a nipple ruler to select the flange size of your nipples. ⑦When using the breast pump, adjust the settings and modes of the breast pump to suit your suction power.