Air blowing system and air blower

Abstract

To provide a technique advantageous to appropriate adjustment of humidity and / or temperature in an air blower.SOLUTION: An air blowing system includes: an air blower having an air blowout port; and a remote controller for operating the air blower. The remote controller includes: a humidity sensor for detecting ambient humidity of the remote controller; and a transmission section that transmits humidity information indicating the ambient humidity detected by the humidity sensor to the air blower. The air blower includes: a fan for sending out air; a humidity adjustment section that adjusts humidity of the air sent out from the fan; and a control section that controls the humidity adjustment section on the basis of the humidity information received from the remote controller.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a blower system and a blower. [Background technology]

[0002] Patent Document 1 describes a hot air machine with a humidifying function, which has a hot air duct that guides the hot air from the blower fan to the outlet, a humidifying duct that guides the hot air from the blower fan to the outlet via a humidifier, and an air flow path switching means that switches the air flow path of the hot air from the blower fan. In the hot air machine described in Patent Document 1, the humidity of the hot air blown out from the outlet is adjusted by switching the air flow path of the hot air from the blower fan between the hot air duct and the humidifying duct by the air flow path switching means. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 4538923 Summary of the Invention [Problem to be solved by the invention]

[0004] In a blower such as a hot air blower, a humidity sensor and / or a temperature sensor are generally provided in the blower body, and the humidity and / or temperature of the air blown out from the blower fan are adjusted based on the detection results of the sensors. However, a user is usually located away from the blower body. Therefore, when adjusting the humidity and / or temperature of the air from the blower fan based on the detection results of the sensor provided in the blower body, it has been difficult to appropriately control the humidity and / or temperature in the location (environment) where the user is located.

[0005] Therefore, an object of the present invention is to provide an advantageous technique for appropriately adjusting humidity and / or temperature in a blower. [Means for solving the problem]

[0006] In order to achieve the above object, an air blowing system according to one aspect of the present invention is an air blowing system including a blower having an air outlet and a remote control for operating the blower, the remote control includes a humidity sensor for detecting an ambient humidity of the remote control, and a transmission unit for transmitting humidity information indicating the ambient humidity detected by the humidity sensor to the blower, the blower includes a fan for blowing out air, a humidity adjustment unit for adjusting the humidity of the air blown out from the fan, and a control unit for controlling the humidity adjustment unit based on the humidity information received from the remote control, the blower further includes a humidifying filter, and the air blown out from the fan is humidified by the humidifying filter. The remote control has a first air flow path that guides air to the air outlet without passing through a filter, and a second air flow path that guides air blown out from the fan to the air outlet through the humidifying filter, and the humidity adjustment unit has a switching mechanism that switches the air flow path from the fan to the air outlet between the first air flow path and the second air flow path, and the control unit controls the switching of the air flow path by the switching mechanism based on the humidity information received from the remote control so that the first air flow path is used when the ambient humidity of the remote control is equal to or higher than a target humidity, and the second air flow path is used when the ambient humidity of the remote control is less than the target humidity. Effect of the Invention

[0007] According to the present invention, for example, it is possible to provide an advantageous technique for appropriately adjusting humidity and / or temperature in a blower. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a diagram showing a configuration example of an air blowing system (first air blowing state) according to an embodiment; [Diagram 2] FIG. 1 is a diagram illustrating a configuration example of an air blowing system (second air blowing state) according to an embodiment; [Diagram 3] Flowchart showing an example of the operation of the air blowing system in the "hot air only mode" [Figure 4] Flowchart showing an example of the operation of the air blowing system in the "humidification only mode" [Diagram 5] Flowchart showing an example of the operation of the air blowing system in "warm air + humidification mode" DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, the embodiments will be described in detail with reference to the accompanying drawings. Note that the following embodiments do not limit the invention according to the claims, and not all combinations of features described in the embodiments are essential to the invention. Two or more features among the multiple features described in the embodiments may be arbitrarily combined. In addition, the same reference numbers are used for the same or similar configurations, and duplicated descriptions are omitted.

[0010] An air blowing system 100 according to an embodiment of the present invention will be described. The air blowing system 100 is a system including an air blower 10 (main body) and a remote control 20. In this embodiment, the air blower 10 is configured as a hot air blower with a humidifying function, and can operate in a number of operation modes including a "hot air only mode", a "humidification only mode", and a "hot air + humidification mode". The "hot air only mode" is a mode in which only temperature adjustment is performed, and the "humidification only mode" is a mode in which only humidity adjustment is performed. The "hot air + humidification mode" is a mode in which both temperature adjustment and humidity adjustment are performed. The remote control 20 is a device for remotely operating the air blower 10.

[0011] Fig. 1 is a diagram showing an example of the configuration of a blower system 100. Fig. 1 shows a schematic internal configuration of a blower 10 and a remote control 20 that constitute the blower system 100. In Fig. 1, the blower 10 is shown in cross section, and the flow of air blown out from the fan 12 is indicated by dashed arrows.

[0012] First, a description will be given of an example configuration of blower 10. Blower 10 may include housing 11, fan 12, heater 13, humidifying filter 14, humidity adjustment unit 15, receiving unit 16, and control unit 17.

[0013] The housing 11 has an outlet 11a (air outlet) on the front side for blowing out air, and houses the various parts 12 to 17. The housing 11 is also configured to be able to house a water tank 18, and has a tray part 11b for storing water W supplied from the water tank 18. The water tank 18 is a tank to which water is refilled by the user, and is inserted into the housing 11 with an openable lid part 11c provided on the top of the housing 11 open. Note that FIG. 1 shows a state in which the water tank 18 is inserted into the housing 11c and the lid part 11c is closed.

[0014] Fan 12 blows out air taken in through an air intake port (not shown) of housing 11. Heater 13 is disposed near the air outlet port of fan 12, and heats the air blown out from fan 12. Humidifying filter 14 is disposed so that a portion of it is immersed in water W stored in tray portion 11b of housing 11, and sucks up water W from tray portion 11b. In the "humidification only mode" and the "warm air + humidification mode", air blown out from fan 12 passes through humidifying filter 14, and the air is humidified.

[0015] The humidity adjusting section 15 is a unit for adjusting the humidity of the air sent out from the fan 12. In the case of this embodiment, the blower 10 has a first air flow path P1 that guides the air sent out from the fan 12 to the air outlet 11a without passing through the humidifying filter 14, and a second air flow path P2 that guides the air sent out from the fan 12 to the air outlet 11a through the humidifying filter 14. The humidity adjusting section 15 is configured as a switching mechanism that switches the air passage of the air sent out from the fan 12 (i.e., the air flow path from the fan 12 to the air outlet 11a) between the first air flow path P1 and the second air flow path P2. Specifically, the humidity adjusting section 15 has, as the switching mechanism, a plate (partition plate) 15a arranged between the first air flow path P1 and the second air flow path P2, and a driving mechanism 15b that drives the plate 15a. The plate 15a is configured to be able to block the inlet of the first air flow path P1 or the inlet of the second air flow path P2. The driving mechanism 15b drives and rotates the plate 15a so that the plate 15a closes the inlet of the first air flow path P1 and closes the inlet of the second air flow path P2.

[0016] When the air sent out from the fan 12 is not humidified, the plate 15a is driven by the driving mechanism 15b so that the plate 15a is disposed in a position blocking the inlet of the second air flow path P2. In this state, as shown in FIG. 1, the plate 15a constitutes the lower surface of the first air flow path P1, and the air sent out from the fan 12 is guided by the plate 15a to the first air flow path P1, passes through the first air flow path P1, and is blown out from the air outlet 11a. That is, the first air flow path P1 is used as the air flow path from the fan 12 to the air outlet 11a. Hereinafter, this state may be referred to as the "first air blowing state." Note that FIG. 1 shows the internal configuration of the blower 10 in the first air blowing state.

[0017] On the other hand, when humidifying the air sent out from the fan 12, the plate 15a is driven by the driving mechanism 15b so that the plate 15a is disposed in a position blocking the inlet of the first air flow path P1. In this state, as shown in FIG. 2, the plate 15a constitutes the side (front) of the second air flow path P2, and the air sent out from the fan 12 is guided by the plate a to the second air flow path P2 and blown out from the outlet 11a through the second air flow path P2. That is, the second air flow path P2 is used as the air flow path from the fan 12 to the outlet 11a. Hereinafter, this state may be referred to as the "second blowing state." Note that FIG. 2 shows the internal configuration of the blower 10 in the second blowing state.

[0018] The receiving unit 16 receives various information transmitted from the remote control 20 (transmitting unit 24). Any method of communication of various information between the receiving unit 16 and the remote control 20 (transmitting unit 24) may be used, for example, infrared communication, WiFi, Bluetooth (registered trademark), etc. The communication method may be wireless communication, but may also be wired communication. The control unit 17 has, for example, one or more processors and memories, and controls the blowing operation of the blower 10. The processor may be, for example, a CPU (Central Processing Unit) or a microcontroller.

[0019] Next, an example configuration of remote control 20 will be described. Remote control 20 may include an operation unit 21, a humidity sensor 22, a temperature sensor 23, and a transmission unit 24. Operation unit 21 is an input unit into which a user inputs operation instructions to remotely operate blower 10, and may include buttons and the like. Humidity sensor 22 detects the ambient humidity of remote control 20. Temperature sensor 23 detects the ambient temperature of remote control 20. Transmission unit 24 transmits various information obtained by remote control 20 to blower 10 (reception unit 16).

[0020] In this embodiment, the transmission unit 24 transmits to the blower 10 instruction information indicating an operation instruction input by the user via the operation unit 21, humidity information indicating the ambient humidity of the remote control 20 detected by the humidity sensor 22, and / or temperature information indicating the ambient temperature of the remote control 20 detected by the temperature sensor 23. The humidity sensor 22 periodically detects the ambient humidity of the remote control 20, and the transmission unit 24 transmits the humidity information to the blower 10 every time the ambient humidity is detected by the humidity sensor 22. Similarly, the temperature sensor 23 periodically detects the ambient temperature of the remote control 20, and the transmission unit 24 transmits the temperature information to the blower 10 every time the ambient temperature is detected by the temperature sensor 23. In this embodiment, both the humidity sensor 22 and the temperature sensor 23 are provided in the remote control 20, but this is not limited thereto. For example, when the air blowing system 100 controls (adjusts) only the humidity, only the humidity sensor 22 may be provided in the remote control 20, and when the air blowing system 100 controls (adjusts) only the temperature, only the temperature sensor 23 may be provided in the remote control 20.

[0021] Here, the user is usually located away from the blower 10 (main body). Therefore, if the blower 10 is provided with a humidity sensor and / or a temperature sensor, it is difficult to appropriately control the humidity and / or temperature in the surrounding environment of the user located away from the blower 10 even if the humidity and / or temperature of the air from the fan 12 is adjusted based on the detection results of the sensors. Therefore, in the blowing system 100 of this embodiment, the remote control 20 is provided with a humidity sensor 22 and / or a temperature sensor 23. Then, the control unit 17 of the blower 10 controls the humidity adjustment unit 15 based on the humidity information received from the remote control 20 by the receiving unit 16 so that the ambient humidity of the remote control 20 becomes the target humidity. Also, the control unit 17 controls the heater 13 based on the temperature information received from the remote control 20 by the receiving unit 16 so that the ambient temperature of the remote control 20 becomes the target temperature.

[0022] The operation of the air blowing system 100 of this embodiment will be described below. Figs. 3 to 5 are flowcharts showing an example of the operation of the air blowing system 100 of this embodiment. Fig. 3 shows an example of the operation of the air blowing system 100 in the "hot air only mode", and Fig. 4 shows an example of the operation of the air blowing system 100 in the "humidification only mode". Also, Fig. 5 shows an example of the operation of the air blowing system 100 in the "hot air + humidification mode". When a user instructs to turn on the operation of the air blower 10, the control unit 17 determines whether the operation mode set by the user is the "hot air only mode", the "humidification only mode", or the "hot air + humidification mode", and selects and executes one of the flowcharts of Figs. 3 to 5 according to the determination result.

[0023] First, an example of the operation of the air blowing system 100 in the "hot air only mode" will be described with reference to the flowchart of FIG.

[0024] In step S101, control unit 17 controls humidity adjustment unit 15 so that the air blowing state of blower 10 becomes a first air blowing state. The first air blowing state is a state in which plate 15a is placed in a position to block the inlet of second air flow path P2, and first air flow path P1 is used as the air flow path from fan 12 to outlet 11a, as shown in Fig. 1. In other words, the first air blowing state is a state in which humidifying filter 14 is not placed in the air flow path from fan 12 to outlet 11a, and the air blown out from fan 12 is not humidified.

[0025] In step S102, the control unit 17 controls (changes) the air volume of the fan 12 in accordance with the user setting. For example, when the air volume set by the user is "strong", the control unit 17 sets the rotation speed of the fan 12 to a first rotation speed. On the other hand, when the set air volume is "medium", the control unit 17 sets the rotation speed of the fan 12 to a second rotation speed that is lower than the first rotation speed. When the set air volume is "weak", the control unit 17 sets the rotation speed of the fan 12 to a third rotation speed that is lower than the second rotation speed.

[0026] In step S103, the control unit 17 determines the target temperature according to the user setting. For example, the user can change the set temperature in increments of 1 degree or 0.5 degree using the remote control 20. In this case, the control unit 17 can receive information indicating the temperature set by the user from the remote control 20 via the receiving unit 16, and determine the set temperature as the target temperature.

[0027] In step S104, the control unit 17 receives (acquires) temperature information from the remote control 20 via the receiving unit 16. The temperature information is information indicating the ambient temperature of the remote control 20 detected by the temperature sensor 23 of the remote control 20. Next, in step S105, the control unit 17 controls the heater 13 based on the temperature information received in step S104 so that the ambient temperature of the remote control 20 becomes a target temperature. For example, if the ambient temperature of the remote control 20 is lower than the target temperature based on the temperature information received in step S104, the control unit 17 increases the power supplied to the heater 13. On the other hand, if the ambient temperature of the remote control 20 is higher than the target temperature based on the temperature information received in step S104, the control unit 17 reduces the power supplied to the heater 13.

[0028] In step S106, the control unit 17 determines whether or not the user has changed the settings such as the set air volume or the set temperature. If the settings have been changed, the process proceeds to step S102, and if the settings have not been changed, the process proceeds to step S107. In step S107, the control unit 17 determines whether or not the user has changed the operation mode. If the operation mode has been changed, the process ends, and the flow chart of FIG. 4 or FIG. 5 is started according to the changed operation mode. On the other hand, if the operation mode has not been changed, the process proceeds to step S108. In step S108, the control unit 17 determines whether or not the user has instructed to turn off the operation of the blower 10. If the user has instructed to turn off the operation, the process ends, and if the user has not instructed to turn off the operation, the process proceeds to step S104.

[0029] Next, an example of the operation of the air blowing system 100 in the "humidification only mode" will be described with reference to the flowchart of Fig. 4. Note that in the "humidification only mode", power supply to the heater 13 does not necessarily have to be performed.

[0030] In step S201, the control unit 17 controls (changes) the air volume of the fan 12 in accordance with a user setting. This step S201 is the same process as step S102 in the flowchart of FIG. 3 described above, and therefore a description thereof will be omitted here.

[0031] In step S202, the control unit 17 determines the target humidity according to the user setting. For example, the user can change the set humidity in three steps, "high (60%)", "medium (50%)", and "low (40%)", using the remote control 20. In this case, the control unit 17 can determine the set humidity as the target humidity by receiving information indicating the humidity set by the user from the remote control 20 via the receiving unit 16. Next, in step S203, the control unit 17 receives (acquires) humidity information from the remote control 20 via the receiving unit 16. The humidity information is information indicating the ambient humidity of the remote control 20 detected by the humidity sensor 22 of the remote control 20.

[0032] In step S204, the control unit 17 judges whether the ambient humidity of the remote control 20 is equal to or higher than the target humidity based on the humidity information received in step S203. If the ambient humidity of the remote control 20 is equal to or higher than the target humidity, the process proceeds to step S205, where the control unit 17 controls the humidity adjustment unit 15 so that the airflow state of the blower 10 becomes the first airflow state. On the other hand, if the ambient humidity of the remote control 20 is lower than the target humidity, the process proceeds to step S206, where the control unit 17 controls the humidity adjustment unit 15 so that the airflow state of the blower 10 becomes the second airflow state. The second airflow state is a state in which the plate 15a is placed at a position that blocks the inlet of the first airflow path P1, as shown in FIG. 2, and the second airflow path P2 is used as the airflow path from the fan 12 to the outlet 11a. In other words, the second airflow state is a state in which the humidifying filter 14 is placed in the airflow path from the fan 12 to the outlet 11a, and the air blown out from the fan 12 is humidified.

[0033] In step S207, the control unit 17 judges whether or not the user has changed the settings such as the set air volume or the set humidity. If the settings have been changed, the process proceeds to step S201, and if the settings have not been changed, the process proceeds to step S208. In step S208, the control unit 17 judges whether or not the user has changed the operation mode. If the operation mode has been changed, the process ends, and the flow chart of FIG. 3 or FIG. 5 is started according to the changed operation mode. On the other hand, if the operation mode has not been changed, the process proceeds to step S209. In step S209, the control unit 17 judges whether or not the user has instructed to turn off the operation of the blower 10. If the user has instructed to turn off the operation, the process ends, and if the user has not instructed to turn off the operation, the process proceeds to step S203.

[0034] Next, an example of the operation of the air blowing system 100 in the "hot air + humidification mode" will be described with reference to the flowchart in Fig. 5. The flowchart in Fig. 5 showing the "hot air + humidification mode" is a combination of the flowchart in Fig. 3 showing the "hot air only mode" and the flowchart in Fig. 4 showing the "humidification only mode".

[0035] In step S301, the control unit 17 controls (changes) the air volume of the fan 12 in accordance with a user setting. This step S201 is the same process as step S102 in the flowchart of Fig. 3 and step S201 in the flowchart of Fig. 4 described above, and therefore a description thereof will be omitted here.

[0036] In step S302, the control unit 17 determines a target temperature according to a user setting. This step S302 is the same as step S103 in the flowchart of FIG. 3 described above, and therefore a description thereof will be omitted here. Next, in step S303, the control unit 17 determines a target humidity according to a user setting. This step S303 is the same as step S202 in the flowchart of FIG. 4 described above, and therefore a description thereof will be omitted here.

[0037] In step S304, the control unit 17 receives (acquires) temperature information from the remote control 20 via the receiving unit 16. The temperature information is information indicating the ambient temperature of the remote control 20 detected by the temperature sensor 23 of the remote control 20. Next, in step S305, the control unit 17 controls the heater 13 based on the temperature information received in step S304 so that the ambient temperature of the remote control 20 becomes the target temperature. For example, if the ambient temperature of the remote control 20 is lower than the target temperature based on the temperature information received in step S304, the control unit 17 increases the power supplied to the heater 13. On the other hand, if the ambient temperature of the remote control 20 is higher than the target temperature based on the temperature information received in step S304, the control unit 17 reduces the power supplied to the heater 13.

[0038] In step S306, the control unit 17 receives (obtains) humidity information from the remote control 20 via the receiving unit 16. The humidity information is information indicating the ambient humidity of the remote control 20 detected by the humidity sensor 22 of the remote control 20. Next, in step 307, the control unit 17 determines whether the ambient humidity of the remote control 20 is equal to or higher than the target humidity based on the humidity information received in step S306. If the ambient humidity of the remote control 20 is equal to or higher than the target humidity, the process proceeds to step S308, where the control unit 17 controls the humidity adjustment unit 15 so that the air blowing state of the blower 10 becomes the first air blowing state. On the other hand, if the ambient humidity of the remote control 20 is lower than the target humidity, the process proceeds to step S309, where the control unit 17 controls the humidity adjustment unit 15 so that the air blowing state of the blower 10 becomes the second air blowing state.

[0039] In step S310, the control unit 17 judges whether or not the user has changed the settings such as the set air volume, the set temperature, or the set humidity. If the settings have been changed, the process proceeds to step S301, and if the settings have not been changed, the process proceeds to step S311. In step S311, the control unit 17 judges whether or not the user has changed the operation mode. If the operation mode has been changed, the process ends, and the flow chart of FIG. 3 or FIG. 4 is started according to the changed operation mode. On the other hand, if the operation mode has not been changed, the process proceeds to step S312. In step S312, the control unit 17 judges whether or not the user has instructed to turn off the operation of the blower 10. If the user has instructed to turn off the operation, the process ends, and if the user has not instructed to turn off the operation, the process proceeds to step S304.

[0040] As described above, in the air blowing system 100 of this embodiment, the remote control 20 is provided with the humidity sensor 22 and / or the temperature sensor 23. Then, based on the humidity information and / or temperature information received from the remote control 20 by the receiving unit 16, the control unit 17 of the air blower 10 controls the humidity adjustment unit 15 so that the ambient humidity of the remote control 20 becomes the target humidity and / or controls the heater 13 so that the ambient temperature of the remote control 20 becomes the target temperature. This makes it possible to appropriately control the humidity and / or temperature in the ambient environment of a user who is located away from the air blower 10.

[0041] The invention is not limited to the above-described embodiments, and various modifications and variations are possible without departing from the spirit and scope of the invention. [Explanation of symbols]

[0042] 10: blower, 11: housing, 11a: air outlet, 12: fan, 13: heater, 14: humidification filter, 15: humidity adjustment section (switching mechanism), 16: receiver, 17: control section, 20: remote control, 21: operation section, 22: humidity sensor, 23: temperature sensor, 24: transmitter, 100: blower system

Claims

1. A ventilation system including a fan having an air outlet and a remote control for operating the fan, The remote control includes a humidity sensor that detects an ambient humidity of the remote control, and a transmission unit that transmits humidity information indicating the ambient humidity detected by the humidity sensor to the blower, the blower includes a fan that blows out air, a humidity adjustment unit that adjusts the humidity of the air blown out from the fan, and a control unit that controls the humidity adjustment unit based on the humidity information received from the remote control; The blower further includes a humidifying filter, and has a first air flow path that guides the air sent out from the fan to the air outlet without passing through the humidifying filter, and a second air flow path that guides the air sent out from the fan to the air outlet through the humidifying filter, the humidity adjustment unit has a switching mechanism that switches an air flow path from the fan to the air outlet between the first air flow path and the second air flow path, The control unit controls the switching of the air flow path by the switching mechanism based on the humidity information received from the remote control, so as to use the first air flow path when the ambient humidity of the remote control is equal to or higher than the target humidity, and to use the second air flow path when the ambient humidity of the remote control is less than the target humidity.

2. In the remote controller, The humidity sensor periodically detects the ambient humidity of the remote control; The air blowing system according to claim 1 , wherein the transmission unit transmits the humidity information to the air blower every time the humidity sensor detects the ambient humidity.

3. The remote control further includes a temperature sensor that detects an ambient temperature of the remote control, The transmission unit transmits, to the blower, temperature information indicating an ambient temperature detected by the temperature sensor, The blower further includes a heater that heats the air blown out from the fan, 3. The air blowing system according to claim 1, wherein the control unit controls the heater based on the temperature information received from the remote control.

4. In the remote controller, The temperature sensor periodically detects an ambient temperature of the remote control; The air blowing system according to claim 3 , wherein the transmission unit transmits the temperature information to the air blower every time the temperature sensor detects an ambient temperature.

5. 4. The air blowing system according to claim 3, wherein the control unit controls the heater based on the temperature information received from the remote control so that an ambient temperature of the remote control becomes a target temperature.

6. The blower is a first mode in which the humidity adjusting unit does not adjust the ambient humidity of the remote control, but adjusts the ambient temperature of the remote control by controlling the heater based on the temperature information received from the remote control; a second mode in which the ambient temperature of the remote control is not adjusted by the heater, and the ambient humidity of the remote control is adjusted by controlling the humidity adjustment unit based on the humidity information received from the remote control; a third mode in which the heater is controlled based on the temperature information received from the remote control, and the humidity adjusting unit is controlled based on the humidity information received from the remote control, thereby adjusting the ambient temperature and the ambient humidity of the remote control; 4. The air distribution system of claim 3, which is operable in a number of operating modes including:

7. A blower operated by a remote control having a humidity sensor, A fan for blowing air; a humidity adjusting unit that adjusts the humidity of the air blown out from the fan; a control unit that receives humidity information indicating an ambient humidity of the remote control detected by the humidity sensor from the remote control and controls the humidity adjustment unit based on the humidity information; a housing that houses the fan, the humidity adjusting unit, and the control unit and is provided with an air outlet; Equipped with The blower further includes a humidifying filter in the housing, and has a first air flow path that guides the air sent out from the fan to the air outlet without passing through the humidifying filter, and a second air flow path that guides the air sent out from the fan to the air outlet through the humidifying filter, the humidity adjustment unit has a switching mechanism that switches an air flow path from the fan to the air outlet between the first air flow path and the second air flow path, The control unit controls the switching of the air flow path by the switching mechanism based on the humidity information received from the remote control, so as to use the first air flow path when the ambient humidity of the remote control is equal to or higher than the target humidity, and to use the second air flow path when the ambient humidity of the remote control is lower than the target humidity.

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