About 3,500 local residents were trained in various construction methods to build the hospital. Those trained to build the walls of a local volcanic stone are now highly sought-after for their construction skills.
Industrial-sized, 24-foot-diameter fans pull air up and out through the upper clerestory vents. Natural ventilation is maximized to have approximately 12 air changes per hour to reduce transmission rates of airborne diseases. Germicidal ultraviolet lights (wall-mounted) help to sanitize air filled with tuberculosis particulates.