Abstract: A neonatal incubator system includes an enclosure having a series of side panels that create a chamber that receives an infant. At least one of the side panels includes a porthole having a porthole door that is movable between open and closed positions. A rotary latch is positioned to engage the porthole door to retain the porthole door in the closed position when the latch is in a latched position. The rotary latch is designed such movement of the rotary latch to an unlatched position creates physical separation between the porthole door and a sealing gasket or bumpers located between the porthole door and the side panel. The rotary latch is designed such that a control knob can be moved to a cleaning position in which the control knob is spaced from the side panel to expose a liquid gutter that is formed as part of a stationary base.