Hovering at around 20 percent, the relative humidity in aircraft is kept very low to keep condensation from building up in the cabin. The downside for passengers and the crew is that this dries out ...

The air in airliner cabins is typically kept very dry. It has to be, in order to stop condensation from accumulating within the plane. Unfortunately, this also dries out passengers' mucus membranes, ...

Hovering at around 20 percent, the relative humidity in aircraft is kept very low to keep condensation from building up in the cabin. The downside for passengers and the crew is that this dries out ...