A preventorium was an institution or building for patients infected with tuberculosis who did not yet have an active form of the disease. Popular in the early 20th century, preventoria were designed to isolate these patients from uninfected individuals as well as patients who showed outward symptoms. The last decenia this preventorium was occupied by a group of artists named Jacob Kreutzfeld. The future is uncertain.
http://www.heeftmeer.nl/index.php?id=138
http://www.heeftmeer.nl/index.php?id=138