The air filtration and cooling system is configured for use with an incorporated reference. The incorporated reference is identified as U.S. Pat. No. 9,308,484. The incorporated reference processes an air flow. Specifically, the incorporated reference removes particulates from the air flow. The incorporated reference is discussed in greater detail elsewhere in this disclosure. The air filtration and cooling system comprises the incorporated reference and a cooling system. The cooling system cools the air flow processed by the incorporated reference.

The air filtration and cooling system is configured for use with an incorporated reference. The incorporated reference is identified as U.S. Pat. No. 9,308,484. The incorporated reference processes an air flow. Specifically, the incorporated reference removes particulates from the air flow. The incorporated reference is discussed in greater detail elsewhere in this disclosure. The air filtration and cooling system comprises the incorporated reference and a cooling system. The cooling system cools the air flow processed by the incorporated reference.

A dehumidifier includes a machine body having a dehumidification function and a water tank including a receiving cavity. The dehumidifier has a working state, in which the machine body is directly above the water tank and the receiving cavity receives water formed by dehumidification by the machine body.

An air guide for a ceiling-type air conditioner is applied to the ceiling-type air conditioner comprising: an indoor unit having a heat exchanger and a blower embedded therein, and having a plurality of blowing passages for discharging, to the outside, air which has passed through the heat exchanger; a plurality of inlets for receiving the air discharged through the plurality of blowing passages; and a discharge panel having an inner space, of which at least a portion communicates with the plurality of inlets, and a ring or arc-shaped opening for discharging, into a room, air which has flowed into the inner space. The air guide includes: at least two partition parts formed in parallel to the radial direction of the opening, and dividing the inner space in the circumferential direction; and a curved part connecting the at least two partition parts, and formed in an arc shape, and is detachably inserted into the inside of the opening from the outside of the opening.

An air guide for a ceiling-type air conditioner is applied to the ceiling-type air conditioner comprising: an indoor unit having a heat exchanger and a blower embedded therein, and having a plurality of blowing passages for discharging, to the outside, air which has passed through the heat exchanger; a plurality of inlets for receiving the air discharged through the plurality of blowing passages; and a discharge panel having an inner space, of which at least a portion communicates with the plurality of inlets, and a ring or arc-shaped opening for discharging, into a room, air which has flowed into the inner space. The air guide includes: at least two partition parts formed in parallel to the radial direction of the opening, and dividing the inner space in the circumferential direction; and a curved part connecting the at least two partition parts, and formed in an arc shape, and is detachably inserted into the inside of the opening from the outside of the opening.

An air conditioner includes a casing, and a blower and a refrigerant circuit disposed in the casing. The blower is configured to blow air. The refrigerant circuit has a compressor, a condenser, a decompressor, and an evaporator and is configured to circulate refrigerant in order of the compressor, the condenser, the decompressor, and the evaporator. The condenser has a first heat transfer tube through which the refrigerant flows and which has a first outside diameter. The evaporator has a second heat transfer tube through which the refrigerant flows and which has a second outside diameter. The evaporator is disposed windward of the condenser. The first outside diameter of the first heat transfer tube of the condenser is smaller than the second outside diameter of the second heat transfer tube of the evaporator.

An air conditioner includes a casing, and a blower and a refrigerant circuit disposed in the casing. The blower is configured to blow air. The refrigerant circuit has a compressor, a condenser, a decompressor, and an evaporator and is configured to circulate refrigerant in order of the compressor, the condenser, the decompressor, and the evaporator. The condenser has a first heat transfer tube through which the refrigerant flows and which has a first outside diameter. The evaporator has a second heat transfer tube through which the refrigerant flows and which has a second outside diameter. The evaporator is disposed windward of the condenser. The first outside diameter of the first heat transfer tube of the condenser is smaller than the second outside diameter of the second heat transfer tube of the evaporator.

A heat pump including a refrigerant circuit configured to circulate flammable refrigerant, and an indoor unit configured to be arranged in an indoor space. The refrigerant circuit has a compressor, a utilisation-side heat exchanger, an expansion device and a heat-source-side heat exchanger connected by piping. The an indoor unit includes an outer casing having a top, and a sealed container accommodated in the outer casing. The sealed container has a bottom and a top and accommodates at least one of the compressor, the utilisation-side heat exchanger, the expansion device, and the heat-source-side heat exchanger. The sealed container has a release opening to exhaust leaking refrigerant to an exterior of the outer casing of the indoor unit.

An air conditioning system suppresses energy consumption by efficient shared use of air in a common space that is not subjected to air conditioning in an indoor area, among a plurality of air conditioners for the purpose of heat exchange. A plurality of air conditioners each include: a usage-side heat exchanger configured to carry out heat exchange with air in an air-conditioning target space; a heat source-side heat exchanger configured to carry out heat transfer to and from the usage-side heat exchanger; and a heat source-side fan configured to feed air from a common space to the heat source-side heat exchanger and to blow the air into the common space. The heat source-side heat exchangers of the air conditioners are disposed in the common space. A first ventilation fan whose airflow volume is changeable is disposed near an exhaust port through which air is discharged from the common space toward an outdoor area. A controller changes the airflow volume of the ventilation fan, based on information on an air temperature of the common space.

A filter assembly for an air conditioner unit includes a filter frame defining a plurality of attachment features for engaging a plurality of mounting features defined on an inlet frame of a cabinet of the air conditioner unit to secure the filter frame over the indoor inlet. A filter screen is attached to the filter frame for filtering a flow of air through the indoor inlet and the filter frame defines a mounting bracket for a secondary air filter.