What is the flow rate of these filters?

The flow rate in xylem filters scales linearly with sapwood area and pressure. These parameters can be adjusted to tune the flow rate to suit user needs. Filter area can be increased by increasing filter diameter or operating multiple filters in parallel. The permeance (flow rate normalized by area and pressure) of ethanol-dried filters and fresh filters is 0.01 L/h.cm2.kPa and 0.03 L/h.cm2.kPa, respectively. This is comparable to the permeance of commercial membranes with equivalent pore size, which is 0.002 – 0.05  L/h.cm2.kPa.