Open vs. Closed System Breast Pumps | Babylist Scout Katy shares a great little secret about closed system pumps, and fills us in on the difference between those and open system ones.
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Amazon.com : Wearable Breast Pump, RUVALINO S12A Portable Electric Breast Pump Hands Free with 3 Modes & 12 Levels, Smart Display, 24mm Comfortable Flange, Breastfeeding Essentials Baby Registry (Pack of 2) : Baby
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Amazon.com : Medela Breast Pump, Pump in Style with MaxFlow, Electric Breastpump, Closed System, Portable : Baby
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