A space which is present between an air intake surface (90a) provided with an air intake port and an air filter (76) is regarded as a primary space (P) through which air flows into the air filter (76), and a plurality of spaces, each of which is present between one of other surfaces of the air filter (76) and a filter box (90), are regarded as secondary spaces (Q) into each of which the air flows out from the air filter (76), so that the air is taken out from side surfaces and an upper surface of a filter unit (75). This configuration reduces the increase in size of the filter unit (75) of a gas supply device (30) even if a dust holding capacity of the filter is made larger than before.

A state estimation apparatus includes: a current information acquisition part that acquires information about a current at a power supply part of a refrigerating/freezing apparatus; a current information storage part that holds current information in a normal state of the refrigerating/freezing apparatus; an evaluation part that derives a degree of change based on the acquired current information and the current information in the normal state of the refrigerating/freezing apparatus; a filter cleaning determination part that estimates a clogging state of a filter of the refrigerating/freezing apparatus based on the degree of change to determine whether cleaning of the filter is necessary; and an output part that provides, for a determination result indicating that the cleaning of the filter is necessary, an output to that effect.

A refrigerator includes: a cabinet defining a storage space and a machine room that is partitioned from the storage space, the machine room including a compressor and a condenser, a blowing fan provided in the machine room, a guide member configured to guide air from an outside of the machine room into the machine room and discharge air from the machine room to the outside of the machine room, and a deodorizing module that is provided inside the guide member and that is configured to remove an odor from air passing through the guide member.

A refrigerator includes a first discharge part such that a temperature distribution difference between the upper section (upper space relative to the center portion of the inside of a storage compartment) of the inside of the storage compartment and the lower section (lower space relative to the center portion of the inside of the storage compartment) of the inside of the storage compartment may be reduced. In addition, water produced in the surrounding area of a blower fan may flow down into a flow path formed under the blower fan such that the loss of the flow amount of cold air may be reduced. Due to such a structure of the refrigerator, even temperature distribution inside of the storage compartment may be realized, and consumption efficiency may be improved.

A refrigerator includes a blower fan assembly having a cold air introduction hole configured to be open toward a storage compartment, and the blower fan assembly is located behind the front surface of an evaporator. Due to the structure of the refrigerator, cold air passing through the evaporator may efficiently flow to the cold air introduction hole of the blower fan assembly, and the flow resistance of the cold air may be reduced, so consumption efficiency may be improved.

A refrigeration apparatus includes a refrigerant circuit having a heat exchanger, a housing that houses at least the heat exchanger and is provided with a suction port on an upstream side of the heat exchanger, and a filter attached to the suction port of the housing. The filter is configured to be held not to come into contact with the heat exchanger. When air containing oil mist flows to the heat exchanger via the filter, at least a part of an oil component in the air containing oil mist is trapped by the filter.

An appliance comprising a door configured to enclose a cooking or chilling space, a filter slot positioned above the door configured to accept a filter for filtering odors and particles, and a control panel for controlling the appliance positioned above the door.

A state estimation apparatus includes: a current information acquisition part that acquires information about a current at a power supply part of a refrigerating/freezing apparatus; a current information storage part that holds current information in a normal state of the refrigerating/freezing apparatus; an evaluation part that derives a degree of change based on the acquired current information and the current information in the normal state of the refrigerating/freezing apparatus; a filter cleaning determination part that estimates a clogging state of a filter of the refrigerating/freezing apparatus based on the degree of change to determine whether cleaning of the filter is necessary; and an output part that provides, for a determination result indicating that the cleaning of the filter is necessary, an output to that effect.

A space which is present between an air intake surface (90a) provided with an air intake port and an air filter (76) is regarded as a primary space (P) through which air flows into the air filter (76), and a plurality of spaces, each of which is present between one of other surfaces of the air filter (76) and a filter box (90), are regarded as secondary spaces (Q) into each of which the air flows out from the air filter (76), so that the air is taken out from side surfaces and an upper surface of a filter unit (75). This configuration reduces the increase in size of the filter unit (75) of a gas supply device (30) even if a dust holding capacity of the filter is made larger than before.

According to one embodiment, a method, computer system, and computer program product for item temperature maintenance is provided. The embodiment may include capturing weather information related to current and predicted weather conditions. The embodiment may also include identifying a period of time when the captured weather information indicates an outdoor temperature satisfies a temperature threshold. The embodiment may further include calculating a thermal advantage of utilizing outdoor air to supplement a normal process of a thermodynamic device. The embodiment may also include, in response to the thermal advantage satisfying a threshold, performing supplementation of the normal process of the thermodynamic device.