English to Greek Medical Medical: Instruments endoscope reprocessor

Context:
The 0.2 µm HEPA class 13 air filter supplies air free from micro-organisms for the machine purge or endoscope channel purge steps.
purging of the channels "Air/Water" with water for 30 seconds;
Lid seal purge (Luer-Lock)
Before inserting the membrane filter, purge the system by allowing the water to run in order to remove the contaminating particles.
...manually purge the terminal filter by filling the bowl and slightly unscrewing the Luer fitting.
Make sure that the purge hose (PVC) for your 0.2 µm water filter is not kinked or pinched.
Endoscope reprocessing cycles: Pre-rinse > cleaning > rinsing > disinfection > rinsing > purging
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Είχα σκεφτεί "εξαέρωση", αλλά το "purge" γίνεται και με νερό και γίνεται και στο ενδοσκόπιο και στο μηχάνημα. Επομένως "εκκένωση";