AST BOD incubators use a compression-refrigeration unit that ensures a constant temperature. The refirgerated incubator works with a special convection technology that ensures a stable, constant climate in the inner chamber. The compressor we use enables temperature ranges from +40 to +10 °C, so that, in addition to maintaining the optimum incubation temperature for the reproduction of microorganisms, an occasional cooling cycle or hot-air disinfection cycle is also possible.