It should not be used in digital photography of pneumoconiosis.

Digital photography of pneumoconiosis should not use breath-holding method.

In digital photography of pneumoconiosis, holding your breath will limit lung ventilation, resulting in insufficient alveolar ventilation, which will affect the image quality and accuracy. Using normal breathing or deep breathing is helpful to maintain good lung function and proper ventilation. Through normal breathing or deep breathing, the background can be kept smooth and the image is clear during shooting, which is helpful for doctors to diagnose diseases accurately.