A premature baby is defined as the baby born in the 22nd-37th week of the pregnancy. A baby, born before the 28th week of the pregnancy, can live inside of a newborn incubator with a thermoregulation system. Newborn's death occurs by water and heat loss due to diseases. A decrement in body temperature causes hypothermia and an increment in body temperature causes hyperthermia that result by the death of the neonatal. For the survival of these babies, a suitable and controllable environment has to be provided. Closed type incubators have been used for many years with accessories such as radiant heater, flow controller etc. The main problem for the closed type incubator occurs when the cover is lifted in an emergency case. The baby exposed to the environment directly which means at least 14 degrees C temperature difference. In the case of radiant heaters without a cover, water loss from the skin of the baby increases. In order to handle these problems, a novel newborn incubator with a laminar flow unit is offered.