What is the main purpose of the cave's ventilation system?

The main purpose of the cave's ventilation system is to maintain air quality and temperature. This system is crucial in a cave environment because it helps to regulate the interior climate by allowing fresh air to flow in and stale air to be expelled. Proper ventilation is essential for controlling humidity levels and preventing the accumulation of carbon dioxide and other gases that could be harmful to both the cave’s ecosystem and visitors.

By ensuring a steady circulation of air, the system also contributes to a stable temperature that can protect sensitive cave formations and the species that inhabit the cave, such as bats and various microorganisms. This stability can enhance the comfort and safety of tour visitors as well. Other options, like creating humidity or circulating water, are not primary functions of the ventilation system and do not directly contribute to the essential balance of the cave's environmental conditions.