Why is humidity control important in the cabin atmosphere?

Humidity control is vital for several health and comfort-related reasons within the cabin atmosphere. When humidity levels are managed effectively, it helps to prevent discomfort that can arise from dry air, which is often prevalent in pressurized aircraft cabins. Low humidity can lead to dehydration, which can cause symptoms such as dry skin, throat irritation, and overall discomfort.

Additionally, maintaining appropriate humidity levels supports respiratory health. When the air is too dry, it can irritate mucous membranes in the respiratory tract, leading to increased susceptibility to infections and discomfort. Thus, controlling humidity not only enhances the overall flight experience by promoting comfort but also plays a crucial role in ensuring passenger health and well-being during the flight.