Re: Pump Models
The Pump in Style and Pump in Style Advanced are very similar breast pumps, the main difference is that the Advanced has a setting to use for letdowns. It automatically uses a softer suction and fast cycle, similar to what a baby does when first latching on, for the first few minutes, then switches to longer, deeper cycles by itself. On the PIS, the mother can accomplish something similar by fiddling with the dials. The PISA also seems to have more variety in carrying bags, and the motor is usually removable. The parts for these two are interchangable.
The Lansinoh pump is made by Ameda, it's almost exactly like the Purely Yours, but with a different color case.
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