A refrigerator is disclosed comprising a storage compartment (left side of figure) that is separated and heat-insulated from another area (310) and an atomization device (331) including an electrode unit (335, 336) for spraying mist into the storage compartment. The electrode unit (335, 336) is electrically connected a high voltage generation circuit (360). A protection unit (346) is configured to prevent flammable refrigerant from being ignited including a discharge suppression unit (365) configured to suppress discharge energy generated in said atomization device (331).