An aroma diffusion system includes an aroma diffusion unit, an acquisition unit, an identification unit, and an aroma determination unit. The aroma diffusion unit has a plurality of patterns of aromas to be diffused, and diffuses an aroma corresponding to the pattern into a target space. The acquisition unit acquires person information relating to at least one of an activity and a mood of a person in the target space. The identification unit identifies at least one of the activity and the mood of the person in the target space, based on the person information acquired by the acquisition unit. The aroma determination unit determines the pattern of the aroma diffusion unit, based on a result of the identification by the identification unit.

An indoor unit of an air conditioner includes a frame of the indoor unit; a heat exchanger mounted on the frame and having a refrigerant pipe in which a refrigerant flows; a hanger plate mounted on a rear surface of the frame and configured to fix the frame onto a wall surface; and a holder plate mounted on a lower portion of the frame and connecting the frame and the hanger plate. An end of the refrigerant pipe is placed in a space formed by the frame, the holder plate, and the hanger plate. The holder plate is movably connected on a lower portion of the frame, so the refrigerant pipe is accessible to a user to perform an operation of connecting or separating the refrigerant pipe to or from a connection pipe connected to an outdoor unit without rotating the frame.

An indoor unit of an air-conditioning apparatus according to the present invention includes a casing having an air inlet provided at a top face, an air outlet provided at a lower portion, and an airflow passage through which the air inlet and the air outlet communicate with each other; a fan disposed in the casing; a heat exchanger disposed upstream of the fan in the casing; a first filter disposed upstream of the heat exchanger in the casing; a front panel attached at a front portion of the casing; a protrusion provided on a back face of the front panel; and a second filter disposed behind the front panel and between the protrusion and the heat exchanger, the second filter being separate from the first filter.

An air conditioner with an air purifying function includes a housing having an air inlet and an air outlet thereon. An air conditioning assembly and an air purifying assembly are disposed in the housing. The air conditioning assembly includes an air conditioning flue. A first fan and a heat exchanger are disposed in the air conditioning flue. The air conditioning flue connects with the air inlet and the air outlet respectively. The air purifying assembly includes an air purifying flue. A second fan and an air filter screen are disposed in the air purifying flue. The air purifying flue connects with the air inlet and the air outlet respectively.

An air conditioner with an air purifying function includes a housing having an air inlet and an air outlet thereon. An air conditioning assembly and an air purifying assembly are disposed in the housing. The air conditioning assembly includes an air conditioning flue. A first fan and a heat exchanger are disposed in the air conditioning flue. The air conditioning flue connects with the air inlet and the air outlet respectively. The air purifying assembly includes an air purifying flue. A second fan and an air filter screen are disposed in the air purifying flue. The air purifying flue connects with the air inlet and the air outlet respectively.

An odor neutralizer, for placement on upward facing indoor air intake louvers of a mini-split or other ductless air conditioner, comprises a cylindrical container housing an evaporable odor neutralizing gel, and having rows of holes in the container covered by flexible strips that can be removed to expose the evaporable gel to air flowing into the intake louvers. The ends of the cylindrical container are closed by end caps shaped to raise the cylindrical container so that it does not block the louvers and so that it does not roll on the louvered surface of the air conditioner.

An indoor unit of an air conditioner includes a frame of the indoor unit; a heat exchanger mounted on the frame and having a refrigerant pipe in which a refrigerant flows; a hanger plate mounted on a rear surface of the frame and configured to fix the frame onto a wall surface; and a holder plate mounted on a lower portion of the frame and connecting the frame and the hanger plate. An end of the refrigerant pipe is placed in a space formed by the frame, the holder plate, and the hanger plate. The holder plate is movably connected on a lower portion of the frame, so the refrigerant pipe is accessible to a user to perform an operation of connecting or separating the refrigerant pipe to or from a connection pipe connected to an outdoor unit without rotating the frame.

In one embodiment, a method includes receiving air into a device that includes an actuator for generating one or more toroidal vortices and determining whether to generate a toroidal vortex for conditioning air in an environment of the device or whether to generate a toroidal vortex for a non-temperature-related functionality. The method further includes generating, based on the determination and by the actuator, one or more toroidal vortices and transmitting, by the device, the one or more toroidal vortices into the environment.

In one embodiment, a method includes receiving air into a device that includes an actuator for generating one or more toroidal vortices and determining whether to generate a toroidal vortex for conditioning air in an environment of the device or whether to generate a toroidal vortex for a non-temperature-related functionality. The method further includes generating, based on the determination and by the actuator, one or more toroidal vortices and transmitting, by the device, the one or more toroidal vortices into the environment.

Implementations of a fluid flow sensing assembly may include a first shell coupled with a second shell including a central vane structure; a blade assembly rotatably coupled within the central vane structure, the blade assembly including one or more flags extending from a central hub; and a one or more fluid flow sensor elements coupled with the second shell of the flow sensor, the one or more fluid flow sensor elements configured to detect motion of the one or more flags where the assembly may be configured to be coupled with one or more scent diffusers.