Aircraft electrostatic particle separation control system

An electrostatic particle separation control system in an Environmental Control System (ECS), comprising:

• a sensor module with a humidity sensor for sensing humidity and an ozone meter for sensing ozone level in an environment in which the system is positioned;
• a particle separator with an electrode to charge liquid particles in an airstream so that the liquid particles migrate away from the electrode and are removed from the airstream;
• a memory module with a stored threshold value for humidity level and a stored threshold value for ozone level and a default stored threshold altitude value for a corresponding saturation humidity level at a location and altitude of the ECS;
• and
• a controller configured to:
• receive a sensed humidity level and sensed ozone level signals from the sensor module, and
• turn off the particle separator in response to the sensor module providing a signal indicating that the sensed humidity is below the saturation humidity level for the corresponding default threshold altitude value and sensed ozone level in said environment is at or above the stored threshold ozone level value.