Thermo Scientific has manufactured the flammable storage refrigerator freezer combination unit for storage of volatiles where a spark-free internal cabinet environment is required. With 5.6 cu. ft. capacity, this 120 volts unit provides a temperature range of 1 to 12 degree C in the refrigerator section and -20 to -12 degree C in the freezer section. Model 3556-6 features spark-free ABS plastic interior with enameled steel exterior to reduce risk of internal explosion. The thermostat located on exterior of the cabinet eliminates interaction with stored materials. Three fixed shelves and three door shelves in refrigerator section gives you ample storage space. Engineered with no internal electrical components which could trigger an explosion, this manual defrost refrigerator freezer meets OSHA and National Fire Protection Association safety requirements.