What is a common symptom of pulmonary O2 toxicity?

Coughing is a common symptom of pulmonary oxygen toxicity because excessive exposure to high concentrations of oxygen can irritate the lungs and airways, leading to inflammation. This inflammation can manifest as a persistent cough, as the body attempts to clear irritants and excess mucus from the respiratory system. In environments where divers use a mixture of gases, pulmonary oxygen toxicity can occur, especially if the partial pressure of oxygen exceeds safe limits, leading to symptoms that include coughing alongside other respiratory issues. Understanding the impact of elevated oxygen levels on lung tissue is crucial for dive supervisors and divers alike to ensure safety and prevent complications during underwater operations.