A unique reverse isolation unit with ultrafilters and protective curtains of air provides an ideal environment for patients whose illness or therapy or both leave them especially infection-prone. Preliminary studies indicate that the enclosure is 97% to 99% effective in protecting the patient from contamination.
Huszar RJ. Air Curtains for Patient Isolation. JAMA. 1969;207(3):549-551. doi:10.1001/jama.1969.03150160061014