Infants and young children are disadvantaged groups, and their healthy growth is very important. As their indispensable daily necessities, clean and sanitary is the primary condition of feeding bottles. However, when the baby is drinking, he sometimes holds the bottle and plays, and the nipple will fall on the quilt, clothes, etc. The nipple is very likely to be stuck with bacteria, which is very unhygienic. The pacifier, as an item in direct contact with the baby, must be kept clean.
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