A Lactina breast pump serves as a mechanical apparatus employed by lactating women to efficiently extract milk from their breasts. Indication of Usage: Preterm delivery Lactating mother with inverted or flat nipple audience: The primary audience for the best Medela Lactina is for Lactating Mothers, Mothers of Premature Infants, Healthcare Professionals and Users Seeking Safe and Non-Toxic Breast Pumping Options. specification Technical Specification: Single or double pumping switch Vacuum adjustable All parts that come into contact with milk are BPA and phthalate free.