A refrigerator includes a rear assembly panel coupled with an assembly cover panel that includes at least one vent. At least one circulation fan is positioned between the rear assembly panel and the assembly cover panel and is proximate the at least one vent. A filter is positioned between the rear assembly panel and the assembly cover panel and is coupled to a photocatalyst to form an activated carbon filter. A light-emitting diode (LED) panel assembly includes a plurality of LEDs positioned on the rear assembly panel and is positioned to project light on the activated carbon filter. An air circulation path extends through the at least one vent and the activated carbon filter and is configured to direct air along the air circulation path, and the activated carbon filter is configured to filter airborne bacteria and particulate matter from the air as the air passes through the activated carbon filter.

A deodorization module and a storage device including the deodorization module. A deodorization module includes: a housing; a suction opening formed on the lower surface of the housing to allow external air to be suctioned therethrough; a fan disposed at the suction opening to suction the air; a discharge opening for discharging the air, which has been suctioned by the fan, to the outside of the housing; a photocatalytic bar disposed between the fan and the discharge opening; and a light source module, which includes a light source substrate and an ultraviolet light source and irradiates an ultraviolet ray to the photocatalytic bar.

The present disclosure relates to a technique capable of being used even in an environment that needs to be maintained at a low temperature. The present disclosure may include a fan configured to generate a flow of air, an absorbing material disposed downstream from the fan and configured to absorb a malodorous substance from air passing therethrough and to desorb the malodorous substance by being heated, an upstream heater disposed downstream from the fan and upstream from the absorbing material and configured to heat air entered the absorbing material, a catalyst configured to decompose the malodorous substance desorbed from the absorbing material, and a cooler configured to cool air passed through the catalyst.

An ethylene absorber unit for a household refrigeration appliance includes a housing and at least one absorber pad which is disposed in a receiving chamber of the housing in such a way that it can be exchanged. A holding duct, which is different from the walls of the housing, is formed in the receiving chamber. The absorber pad is inserted in the holding duct. A household refrigeration appliance having the absorber unit is also provided.

A refrigerator may include a smell sensor for detecting smell in the refrigerator; a deodorizer for adsorbing, sterilizing, and deodorizing air in the refrigerator; and a controller for calculating smell values based on the detected smell at the smell sensor, changing a deodorizing mode according to the detected smell, and controlling the deodorizer.

A refrigerator includes a cabinet coupled to one or more doors forming a storage compartment. The refrigerator additionally includes a first fan assembly positioned on an interior surface of a first cabinet wall, and a second fan assembly positioned on the interior surface of a second cabinet wall. The first and second fan assemblies each include: two or more circulation fans; a filter coupled to a photocatalyst to form an activated filter; and a plurality of UV LEDs positioned to project light on the activated filter. An air circulation path is configured to direct air born bacteria and particulate matter within the storage compartment contemporaneously into the first and second fan assemblies using the two or more circulation fans and circulate filtered air into the storage compartment through the activated filter disposed in the air circulation path.

The present invention relates to a refrigerator controlling freshness on the basis of context awareness and artificial intelligence, a server, a portable device, and a method for controlling freshness. The refrigerator controlling freshness on the basis of context awareness, according to one embodiment of the present invention, comprises: one or more partitioned storage spaces; one or more freshness sensors for sensing the freshness in an outside area or the storage spaces; a communication unit for receiving operation instruction information from the server or the portable device, and transmitting, to the server or the portable device, freshness condition information generated by the freshness sensors; and a control unit for controlling the freshness sensors and the communication unit, and performing a freshness control operation according to operation instruction information instructing an operation that differs from pre-set operating condition information that is set for any one or more of the storage spaces.

A deodorization module and a storage apparatus, the deodorization module including: a housing having one surface including a curved surface; a suction port formed on one surface of the housing to draw in external air; a fan disposed in the suction port and drawing in air; a discharge port formed on one surface of the housing to discharge the air drawn through the fan into the outside of the housing; a photocatalytic filter disposed between the fan and the discharge port and including a through hole through which air passes; and a light source module for irradiating ultraviolet rays onto the photocatalytic filter.

An appliance air freshener having a frame and an air freshener medium. The frame defines an enclosure having a first face, and a second face opposite and spaced from the first face. The first face and the second face form an outer perimeter of the enclosure. The frame also defines a passage located within and spaced from the outer perimeter and extending along a passage axis from the first face to the second face. The air freshener medium is located within the enclosure.

An appliance air freshener having a frame and an air freshener medium, The frame defines an enclosure having a first face, and a second face opposite and spaced from the first face. The first face and the second face form an outer perimeter of the enclosure. The frame also defines a passage located within and spaced from the outer perimeter and extending along a passage axis from the first face to the second face. The air freshener medium is located within the enclosure.