A refrigerator includes a deodorizer installed on an upper surface of a storage compartment. The deodorizer includes a housing in which a flow path is provided, a suction port provided on a lower surface of the housing to suck air, a discharge port provided in the front of the suction port to discharge air, a photocatalytic deodorizing filter disposed at an inner side of the suction port, and a filter light source configured to irradiate light to the photocatalytic deodorizing filter, the flow path is configured to guide air from a rear lower side where the suction port is positioned to a front lower side where the discharge port is positioned, and the filter light source is disposed above the photocatalytic deodorizing filter to face the photocatalytic deodorizing filter in a state of being spaced apart from each other, and positioned above air passing through the flow path.

Disclosed herein is a device in the form of a bung for insulating a container interior from the ambient environment, the bung comprising: a plurality of insulating segments; and one or more barriers for reflecting infrared radiation. Disclosed is: a method of preparing a shipping system for retaining a cryopreserved sample, the method comprising: loading a cryopreserved sample into a container such as a vacuum flask; and fitting the bung to the container to insulate the container interior from the ambient environment, and a method of cooling a container, such as a vacuum flask, for retaining cryopreserved samples to a desired temperature, the method comprising: cooling the container interior by pouring a cryogenic fluid such as liquid nitrogen into the container; and emptying the cryogenic fluid from the container, once the cooling has at least partially taken place.

A meat-aging apparatus is disclosed. The meat-aging apparatus comprises: a photographing unit for photographing meat stored in the meat-aging apparatus; an illumination unit for irradiating light to the meat; a storage unit for storing recipe information for aging the meat according to the type or state of the meat; and a processor for determining the type or state of the meat on the basis of a photographed image, and controlling the illumination unit to irradiate light to the meat according to the recipe information corresponding to the determined type or state of the meat in order to age the meat.

A refrigerator appliance includes a cabinet with a fresh food chamber, a freezer chamber, and an aging chamber each defined in the cabinet. The refrigerator appliance also includes an aging chamber door mounted to the cabinet and movable between a closed position and an open position. A method of operating the refrigerator appliance includes receiving a meat aging input from a user interface of the refrigerator appliance and moving a lock configured to retain the aging chamber door in the closed position to a locked position whereby the aging chamber door is retained in the closed position in response to the meat aging input. The method also includes activating a dedicated humidity control system in fluid communication with the aging chamber and fluidly isolated from the fresh food chamber and the freezer chamber for an aging time after moving the lock to the locked position.

Ultraviolet radiation is directed within an area. Items located within the area and/or one or more conditions of the area are monitored over a period of time. Based on the monitoring, ultraviolet radiation sources are controlled by adjusting a direction, an intensity, a pattern, and/or a spectral power of the ultraviolet radiation generated by the ultraviolet radiation source. Adjustments to the ultraviolet radiation source(s) can correspond to one of a plurality of selectable operating configurations including a storage life preservation operating configuration, a disinfection operating configuration, and an ethylene decomposition operating configuration.

A positive and negative pressure system and an operation method therefor, and a positive and negative pressure electrical appliance using the positive and negative pressure system. The positive and negative pressure electrical appliance comprises: a positive and negative pressure refrigerator, a positive and negative pressure washing machine, a vacuum dishwasher/fruit and vegetable cleaning machine, a super-oxygenated water washing range hood, a positive and negative pressure oven/fryer/microwave oven, a positive and negative pressure fresh-keeping compartment, a positive and negative pressure fresh-keeping warehouse, and a positive and negative pressure modular cabinet. Regulating airflow with positive and negative pressure, or carrying multiple effective loads such as ozone, an air catalyst, a negative ion, modified atmosphere gas and water for orderly getting in and out of or staying in a positive and negative pressure chamber, and exerting the required effects on objects therein.

An xenon lamp power supply, a purification device, and a refrigeration device are provided. The xenon lamp power supply comprises: an input circuit, a coupling assembly, an output circuit, and a control circuit. The input circuit comprises an alternating-current input end and a direct-current output end, and the input circuit is used for converting alternating current input by the alternating-current input end into direct current output by the direct-current output end. A first end of the coupling assembly is connected to the direct-current output end. The output circuit comprises a xenon lamp power supply circuit, and the xenon lamp power supply circuit is connected to a second end of the coupling assembly, so as to convert electric energy from the second end into direct-current power, and then supply power to a xenon lamp.

A deodorizing apparatus including: a base, in which a suction port and a discharge port are disposed; a cover coupled to the base; a suction fan fixed to the base so as to suction air through the suction port; a first fixing member disposed between the suction port and the discharge port so as to support a filter; a light emitting module including a light emitting diode; and a second fixing member for supporting the light emitting module. The first fixing member includes a first body part for spacing the filter apart from the base.

Devices, methods, and systems for disinfection with light are disclosed. In some examples, a lighting source is operable to provide light at wavelength range of about 380 nm - 420 nm with an irradiance and/or dosage sufficient for disinfection. One or more sensors and a control system may be used to control operation of the lighting source, such as by adjusting the lighting source in response to various inputs.

A refrigerator is disclosed. The refrigerator is able to store food at a low temperature and to effectively remove bacteria of the food stored in a storage room, to maintain the storage room clean.