Some advanced incubators are also provided with HEPA filters to lower the possible contamination created due to airflow.The next end with the mercury bulb is protruded slightly into the chamber of the incubator.One end of the thermometer provided with gradations remains outside of the incubator so that temperature can be read easily.A thermometer is placed on the top part of the outer wall of the incubator.This seal prevents the outside air from entering the cabinet and thus, creating an isolated hot environment inside the cabinet without being interrupted by the external environment.The asbestos door gasket provides an almost airtight seal between the door and the cabinet.In some incubators, the shelves are removable, which allows the shelves to be cleaned properly.The perforations on the shelves allow the movement of hot air throughout the inside of the incubator.Bound to the inner wall are some perforated shelves onto which the plates with the culture media are placed.After the desired temperature is reached, the thermostat automatically maintains the incubator at that temperature until the temperature is changed again.A thermostat is used to set the desired temperature of the incubator.The control panel also has a witch to control the thermostat of the device.On the outer wall of the incubator is a control panel with all the switches and indicators that allows the parameters of the incubator to be controlled.A handle is present on the outside of the door to help with the maneuvering of the door.It is also provided with a glass that enables the visualization of the interior of the incubator during incubation without disturbing the interior environment. The door also has insulation of its own.A door is present in all incubators to close the insulated cabinet.The inner wall of the incubator is provided with inward projections that support the shelves present inside the incubator.The insulation prevents heat loss and reduces electric consumption, thereby ensuring the smooth working of the device.The space between the two walls is filled with glass wool to provide insulation to the incubator.The outer wall is made up of stainless steel sheets while the inner wall is made up of aluminum.The cabinet is the main body of the incubator consisting of a double-walled cuboidal enclosure with a capacity ranging from 20 to 800L.

A microbial incubator is made up of various units, some of which are: Cabinet

Human incubator