JP5816215B2 - Wall greening air purification device and system using the same - Google Patents

Description

  The present invention relates to a wall surface greening air purification apparatus having a function of greening a wall surface and a function of purifying the atmosphere, and a system using the same.

  The wall surface greening air purification apparatus has an advantage that greening and air cleaning can be efficiently performed without taking up a large floor area because greening and air cleaning are performed on the wall surface as an elevation. Conventionally, in this type of wall surface greening air purification device, wall surfaces are greened by arranging a plurality of boxes in which plants are planted on the front side so as to be adjacent to each other, and the air to be purified sucked by a fan is passed through a duct. In this way, it is fed to the back of each box. The to-be-purified air sent in is purified by passing through a plant growth base such as a soil layer filling each box.

Japanese Patent No. 5001148

The configuration of the conventional example described above has the following problems.
・ A large number of ducts are required to send the air to be purified to each box to be the greening part.
・ In order to push the air to be purified discharged from the duct evenly into the box, a separate rear panel for dispersion is required on the back side of the box.
・ The duct is exposed from the box and deteriorates over time, and maintenance of the duct becomes necessary.
-The duct space for the duct may be larger than the box that will be the greening part, so it cannot be installed close to the wall.

  An object of the present invention is to provide a wall surface greening air purification device that can reduce or eliminate the duct for sending the air to be purified and can be installed without projecting greatly from the wall surface, and a system using the same. That is.

The wall surface greening air purification apparatus of this invention has a plant growth base on which a plant is planted on one side, and a ventilation layer forming member formed with a ventilation layer along the other side of the plant growth base, The basic structure is that a breathable member is interposed between the ventilation layer, the plant growth base is divided into a plurality of sections, and a member for supporting the plant growth base material is provided for each section .

  According to this configuration, the ventilation layer forming member that forms the ventilation layer along the plant growth base is provided, and the ventilation layer and the plant growth base are partitioned by the breathable member, so that the number of ducts for sending the air to be purified is reduced. Or can be eliminated. Since the air to be purified is dispersed throughout the back surface of the plant growth base in the ventilation layer, it is not necessary to provide a separate panel or the like for dispersion on the back surface side. Since the ventilation layer is provided over the entire back of the plant growth base, it can be sufficiently ventilated even if it is thin. Even if the ventilation layer is provided, the overall thickness of the wall greening air purification device does not become too thick. . Thus, the ventilation layer can be made thin, and it is not necessary to make a large piping space for the duct on the back surface, so that it can be installed without projecting greatly from the wall surface. When the purified air is sent to the ventilation layer from a duct communicating with the end face of the ventilation layer, or directly from the fan installed in this wall greening air purification device to the ventilation layer The wall greening air purification device can be installed in close contact with the wall surface, and the protruding width from the wall surface can be further reduced. In addition, since the plant growth base is divided into a plurality of sections and a member for supporting the plant growth base material is provided for each section, the plant growth base material such as soil can be evenly dispersed in the occupied space. .

  In this invention, in the plant growth base, the plant growth base can be divided into a plurality of sections, and a water support in the compartment can be interposed as a member for supporting the plant growth base material for each section. good. If the soil support material in the compartment is a member through which water can flow, irrigation can be spread over the compartment, so that irrigation becomes easy.

Thus, when providing the soil support material in a division, the outer periphery frame surrounding an outer periphery over the said plant growth base and a ventilation layer is provided, and the said ventilation layer formation member is a part of the thickness of the said ventilation layer in the said outer periphery frame. And it is good also as a thin box shape which consists of a back plate which covers the opening part on the opposite side to the said plant growth base of the said outer periphery frame.
By forming the ventilation layer forming member into a thin box shape, the airflow layer forming member is compact and has an orderly shape without complicated ducts.

In this invention, the plant growth base is divided into a plurality of sections, and as a member for supporting the plant growth base material for each section, an individual frame surrounding the outer periphery of the plant growth base portion of each section is provided. A greening unit may be configured by the base portion and the individual frame.
Many wall greening systems connect, for example, 300-500 mm square units, and providing a ventilation layer forming member for each unit is inefficient in terms of construction and cost. However, in this invention, since a plurality of greening units are arranged for one ventilation layer forming member and the ventilation layer forming member is shared by the plurality of greening units, it is efficient in terms of construction and cost. Moreover, it becomes easy to utilize the greening unit generally marketed for this wall surface greening air purification apparatus by setting it as the structure which arranges the above greening units, and can achieve further cost reduction.

Other green walls air purification system of this invention, in the basic configuration, the ventilation layer forming member, Ru provided a communicating hole which communicates the vent layer and communicating the adjacent wall greening air purification system.
By providing this communication port, a plurality of wall greening air purification apparatuses can be communicated with each other without using a duct. For this reason, when wall surface greening air purification devices are arranged over a wide area, adjacent wall surface greening air purification devices can be placed in contact with each other, and in this case as well, between the devices on the back of the wall surface greening air purification device, etc. No need for a duct to connect.

In the present invention, a fan that feeds purified air into the ventilation layer may be provided.
In this configuration, the air to be purified sucked by the fan is sent directly into the ventilation layer, so that a duct is not required at all.

The wall surface greening air purification apparatus system according to the present invention is provided with a plurality of wall surface greening air purification apparatuses according to the present invention arranged side by side in contact with each other, and a fan for sending the air to be purified to the ventilation layer of the plurality of wall surface greening air purification apparatuses. It is provided.
According to this configuration, by arranging the plurality of wall surface greening air purification devices, wider wall greening can be performed, and the ability of air purification is increased. Even if a plurality of wall greening air purification devices are arranged, each wall greening air purification device has a ventilation layer along the back of the plant growth base, so there are fewer ducts for sending the air to be purified to the plant growth base, or It can be lost.

The wall surface greening air purification apparatus of this invention has a plant growth base on which a plant is planted on one side, and a ventilation layer forming member formed with a ventilation layer along the other side of the plant growth base, Since it has a basic configuration in which a breathable member is interposed between the ventilation layer and the plant growth base is divided into a plurality of sections and a member for supporting the plant growth base material is provided for each section, The number of ducts for feeding can be reduced or eliminated, and the duct can be installed without projecting greatly against the wall surface. Further, in the plant growth base, the plant growth base is divided into a plurality of sections, and as a member for supporting the plant growth base material for each section, an in-compartment soil support material is interposed, and the plant An outer peripheral frame surrounding an outer periphery over the growth base and the ventilation layer is provided, and the ventilation layer forming member includes a portion of the outer peripheral frame having a thickness of the ventilation layer and an opening of the outer peripheral frame on the opposite side to the plant growth base. Because it was made into a thin box shape with a back plate that covers the part, it is possible to spread irrigation beyond the section, facilitating irrigation, compact and orderly shape without complicated ducts Become .
Another wall surface greening air purification apparatus according to the present invention has a plurality of wall surface greening air purification apparatuses in the above-described basic configuration, since the ventilation layer forming member is provided with a communication port that communicates with a ventilation layer of an adjacent wall surface greening air purification apparatus. Can be communicated at the communication port without using a duct. For this reason, when wall surface greening air purification devices are arranged over a wide area, adjacent wall surface greening air purification devices can be placed in contact with each other, and in this case as well, between the devices on the back of the wall surface greening air purification device, etc. No need for a duct to connect.

  The wall surface greening air purification apparatus system according to the present invention is provided with a plurality of wall surface greening air purification apparatuses according to the present invention arranged side by side in contact with each other, and a fan for sending the air to be purified to the ventilation layer of the plurality of wall surface greening air purification apparatuses Since it is provided, wider wall greening can be performed and the capacity of air purification is increased. Further, the number of ducts can be reduced or eliminated, and the duct can be installed without projecting greatly from the wall surface.

It is a longitudinal cross-sectional view of the wall surface greening air purification apparatus concerning 1st Embodiment of this invention. It is a longitudinal cross-sectional view which shows the attachment state to the wall surface of the wall surface greening air purification apparatus. It is a longitudinal cross-sectional view shown except the plant growth base of the wall surface greening air purification apparatus. It is a longitudinal cross-sectional view which shows an example of the wall surface greening air purification apparatus system which comprised the wall surface greening air purification apparatus side by side. It is a front view which shows the other example of a wall surface greening air purification apparatus system. It is a longitudinal cross-sectional view of the wall surface greening air purification apparatus concerning other embodiment of this invention. (A) is a longitudinal cross-sectional view of the wall surface greening air purification apparatus concerning further another embodiment of this invention, (B) is the front view. (A) is a longitudinal cross-sectional view of the wall surface greening air purification apparatus concerning further another embodiment of this invention, (B) is the front view. (A) is a longitudinal cross-sectional view of the wall surface greening air purification apparatus concerning further another embodiment of this invention, (B) is the front view. It is a schematic perspective view of the wall surface greening air purification apparatus which concerns on other embodiment of this invention. It is a longitudinal cross-sectional view of the wall surface greening air purification apparatus.

  A first embodiment of the present invention will be described with reference to FIGS. As shown in a longitudinal sectional view in FIG. 1, the wall surface greening air purification device 1 includes a plant growth base 2 such as a soil layer on which a plant 20 is planted on one side, and a ventilation layer along the other side of the plant growth base 2. 3 is a wall panel shape having a ventilation layer forming member 4 in which 3 is formed. The one side of the plant growth base 2 is a greening portion. Between the plant growth base 2 and the ventilation layer 3, a mesh material 5 which is a kind of a breathable member is interposed. One side on which the plant 20 of the plant growth base 2 is planted is also covered with another mesh material 15. In the plant growth base 2, an in-compartment soil support material 6 that divides the plant growth base 2 into a plurality of sections and supports the load of the soil in the sections is interposed. The intra-compartment soil support material 6 is made of, for example, a mesh material. By interposing the soil support material 6 in the compartment, the soil constituting the plant growth base 2 can be evenly distributed in the occupied space of the plant growth base 2 without being biased. As the soil constituting the plant growth base 2, for example, lightweight soil is used, but ceramic or the like may also be used. The mesh materials 5 and 15 and the in-compartment soil support material 6 are made of, for example, a wire mesh in which plated wires are knitted vertically and horizontally.

The plant growth base material used for the plant growth base 2 includes various natural soil improvement materials such as bark compost, peat moss and cocoa dust, or inorganic soil improvement materials such as perlite and vermiculite. It is good also as a layer which combined suitably the material which distribute | circulates generally. Moreover, the plant growth base 2 may be a sponge-like or felt-like material having air permeability in addition to soil.

  The outer periphery over the plant growth base 2 and the ventilation layer 3 is surrounded by a rectangular outer peripheral frame 7. The ventilation layer forming member 4 has a thin box shape including a portion 7a having a thickness of the ventilation layer 3 in the outer frame 7 and a back plate 8 covering an opening portion of the outer frame 7 opposite to the plant growth base 2. Has been. The ventilation layer 3 is communicated with a fan 9 installed outside the apparatus via a duct 10. As a result, the air to be purified outside the apparatus is sucked by the fan 9 and sent into the ventilation layer 3 through the duct 10. The air to be purified sent in is purified by passing through the plant growth base 2. The duct 10 is connected to the ventilation layer 3 on the back surface in the illustrated example, but may be connected to the side end surface, the upper and lower surfaces, etc. of the ventilation layer 3.

  An example of the size of the wall surface greening air purification device 1 will be described. FIG. 3 shows a state where the soil is removed. The total thickness (depth) D is 200 mm, the thickness of the ventilation layer 3 is 50 mm, and the height H is 2250 mm. The width (not shown) is, for example, an integral multiple of 1/2 of a building module, and is 445 mm to 1820 mm. In addition, this dimension example is an example and what is necessary is just to design arbitrarily.

  As shown in a longitudinal sectional view in FIG. 2, the wall surface greening air purification device 1 is arranged and supported along the wall surface 21 of the building so that one side on which the plant 20 of the plant growth base 2 is planted is the front surface. It is attached to the wall surface 21 via the member 22. By attaching in this way, the wall surface 21 is greened by the plant 20 planted on one side of the plant growth base 2.

  According to the wall surface greening air purification apparatus 1 having this configuration, the ventilation layer forming member in which the plant growth base 2 on which the plant 20 is planted on one side and the ventilation layer 3 along the other side of the plant growth base 2 are thus formed. 4, and the mesh material 5 is interposed between the plant growth base 2 and the ventilation layer 3, so that the ventilation layer 3 can be communicated with the fan 9 outside the apparatus by a single duct 10. The air to be purified sucked by the fan 9 can be introduced into the ventilation layer 3 and can be spread over the whole area of the plant growth base 2. Thereby, since the duct 10 for sending the air to be purified can be minimized, the piping space of the duct 10 can be reduced as much as possible, the wall surface greening air purification apparatus 1 can be installed substantially in contact with the wall surface 21 of the building, and the duct 10 Most maintenance is no longer necessary. When the duct 10 communicates with the ventilation layer 3 at the side end face of the wall surface greening air purification device 1, the back surface can be installed in close contact with the wall surface 21 of the building.

  FIG. 4 shows a longitudinal sectional view of another embodiment of the present invention. In this embodiment, the wall surface greening air purification device system 11 is configured by arranging a plurality of the wall surface greening air purification devices 1 so as to be in contact with each other at their end faces. Here, the two wall surface greening air purification apparatuses 1 are arranged vertically. Each outer peripheral frame 7 which is an end surface where the upper and lower wall surface greening air purification apparatuses 1 and 1 are in contact with each other is provided with a communication port 12 that allows the ventilation layer 3 to communicate with each other. The fan 9 installed outside the apparatus is communicated with the ventilation layer 3 of one wall surface greening air purification device 1 (here, the upper wall surface greening air purification device 1) through one duct 10. As a result, the air to be purified sucked by the fan 9 enters the ventilation layer 3 of the one wall surface greening air purification device 1 from the duct 10 and further through the communication port 12 to the ventilation layer 3 of the other wall surface greening air purification device 1. It is sent in. The effect of each wall surface greening air purification device 1 is the same as that of the embodiment shown in FIG.

  In this way, by configuring the wall surface greening air purification device system 11 to arrange a plurality of wall greening air purification devices 1 of the same standard, the wall surface area several times the wall surface area that one wall surface greening air purification device 1 bears Greening and air purification become possible.

FIG. 5 shows a front view of still another embodiment of the present invention. In this embodiment, one wall greening air purification device 1 that divides the plant growth base 2 into nine sections with vertical and horizontal in-situ soil support materials 6, and the plant growth base 2 with three in-compartment soil support materials 6. The other wall surface greening air purification device 1 divided into two is installed side by side. In each wall surface greening air purification device 1, each section communicates with the air-permeable layer 3 on the back surface.
The two wall surface greening air purification apparatuses 1 and 1 are provided with communication ports 12 (not shown in FIG. 5) similar to those in the example of FIG. The ventilation layers 3 are blocked from each other by being partitioned by 13. In this case, the ventilation layer 3 for each wall surface greening air purification device 1 communicates with a fan 9 outside the device via an individual duct 10. In each wall greening air purification device 1, the air to be purified reaches all the sections of the plant growth base 2 through the ventilation layer 3. The effect of each wall surface greening air purification device 1 is the same as that of the embodiment shown in FIG.

  Also in this embodiment, one wall surface greening air purification device system 11 is formed by communicating the ventilation layer 3 of two adjacent wall surface greening air purification devices 1 and 1 through the communication port 12 as in the embodiment of FIG. May be configured. In this way, by allowing the ventilation layer 3 to be continuous, the ventilation layer 3 can be ventilated in any of the upper, lower, left and right directions, and can be restricted by the partition plate 13.

FIG. 6 shows a longitudinal sectional view of still another embodiment of the present invention. In this embodiment, in the wall greening air purification apparatus 1 shown in FIG. 1, among the sections divided by the soil support material 6 in the section of the plant growth base 2, some of the sections are empty sections 14 not filled with soil. It is what. A sealing plate 16 is provided at a portion of the mesh material 5 that serves as a partition material with the ventilation layer 3 in the empty section 14, and thus the air to be purified introduced into the ventilation layer 3 passes through the empty section 14 from the mesh material 5. It is made not to leak outside. Thus, by making a part of the section that becomes the plant growth base 2 into the empty section 14, a part of the greening part can be made into a non-greening part, for example, by combining the greening part and the non-greening part, A green wall with a mosaic pattern.
In addition, you may provide the water receptacle (not shown) which is located near the upper end in the empty division 14, and opposes the lower surface of the soil support material 6 in an division.

  7A and 7B show a longitudinal sectional view and a front view of still another embodiment of the present invention. In this embodiment, in the wall surface greening air purification apparatus 1 shown in FIG. 1, some of the plurality of sections serving as the plant growth base 2 are empty sections 14 as in the embodiment of FIG. A fan 9 for sending the air to be purified is provided in the empty section 14. In addition to the fan 9, a power supply control panel 17 that controls the fan 9 is provided in the empty section 14. In addition, here, among the upper and lower sections of the plant growth base 2, the lower section is the empty section 14 where the fan 9 and the power supply control panel 17 are installed. A water receiving portion 18 is provided on the upper side of the empty compartment 14 to receive the dripping through the empty compartment 14.

In the case of this embodiment, the air to be purified sucked by the fan 9 is sent directly into the ventilation layer 3, so that the duct 10 as in the embodiment of FIG. Other functions and effects are the same as those of the embodiment of FIG.

  8A and 8B show a longitudinal sectional view and a front view of still another embodiment of the present invention. In this embodiment, in the wall surface greening air purification apparatus 1 shown in FIG. 7, the division of the plant growth base 2 divided into a plurality by the in-compartment soil support material 6 has a total of 12 divisions of four stages up and down and three stages on the left and right. Of these sections, the three lowest sections are the empty sections 14 provided with the fans 9. The fan 9 in each empty section 14 is configured to send the air to be purified into the ventilation layer 3 corresponding to the plant growth base 2 for three sections arranged vertically on the fan 9. That is, the air-permeable layer 3 provided along the plant growth base 2 is divided into three areas by a partition plate (not shown) or the like, with three vertically arranged sections as one area.

If the thickness dimension of the air-permeable layer 3 is 50 mm, the air-permeable layer 3 can bear a greening area (area of the plant growth base 2) up to about 10 m ^{2 with} respect to one fan 9. If the total area of the three sections is about 10 m ^2, it can be sufficiently handled. In other words, since an arbitrary greening area can be borne according to the scale of the fan 9, it can be handled within the arbitrary greening area. A power supply control panel 17 that controls all three fans 9 is provided in the central empty section 14 among the empty sections 14. Further, a water receiving portion 18 is provided on the upper side of each empty section 14. Other configurations and operational effects are the same as those of the embodiment of FIG.

  9A and 9B show a longitudinal sectional view and a front view of still another embodiment of the present invention. In this embodiment, in the wall surface greening air purification apparatus 1 shown in FIG. 7, the plant growth base 2 sections divided into a plurality of sections by the soil support material 6 in the section have a total of nine sections, three stages up and down and three stages on the left and right. Of these sections, one central section is an empty section 14 provided with a fan 9. The fan 9 in the empty section 14 sends the air to be purified into the ventilation layer 3 corresponding to the plant growth base 2 for eight sections arranged in the vicinity. In the same empty section 14, a power control panel 17 that controls the fan 9 and a water receiver 18 are provided. Other configurations and operational effects are the same as those of the embodiment of FIG.

  10 and 11 show a wall surface greening air purification apparatus according to still another embodiment of the present invention. In this example, a plurality of greening units 2A are arranged vertically and horizontally on the front surface of one ventilation layer forming member 4A. Each greening unit 2A is obtained by filling a plant growth base material such as soil in a box-like individual frame 31 opened at the front and rear. That is, in this example, the plant growth base 2 is divided into a plurality of sections, and the individual frame 31 surrounding the outer periphery of the plant growth base portion 2a of each section is provided as a member that supports the plant growth base material for each section. Is. The individual frame 31 is provided with a mesh material 5 interposed between the ventilation layer 3 of the ventilation layer forming member 4A and the plant growth base 2 and a mesh material 15 for planting on both sides. The greening units 2A may be arranged closely, or may be arranged through a gap. When arranged via a gap, a spacer 33 that closes the gap between adjacent greening units 2A may be provided. An example of the dimensions of the greening unit 2A is a square having a side of 300 to 500 mm.

In this example, the ventilation layer forming member 4A is a thin box-like member that does not have a portion surrounding the outer periphery of the plant growth base 2 and forms only the ventilation layer 3. The ventilation layer forming member 4 </ b> A has a front surface opened, and a duct 10 is connected to the ventilation layer 3 in communication with the rear surface. The ventilation layer forming member 4A is installed on a wall surface of a building or the like via, for example, a steel brace 32.
In this example, the greening units 2A are arranged vertically and horizontally, but a plurality of greening units 2A may be provided only on the left and right, or a plurality of trees may be arranged only on the top and bottom. This embodiment is the same as the first embodiment except for the matters specifically described.

  As in the case of this configuration, a general greening unit 2A can be used for the plant growth base 2, and the construction and cost are excellent. Many wall greening systems connect, for example, 300-500 mm square units, and providing a ventilation layer forming member for each unit is inefficient in terms of construction and cost. However, in this embodiment, since a plurality of greening units 2A are arranged for one ventilation layer forming member 4A and the ventilation layer forming member 4A is shared by the plurality of greening units 2A, it is efficient in terms of construction and cost. It will be a thing. Further, by arranging the greening units 2A as described above, it becomes easy to use a commercially available greening unit for the wall surface greening air purification device, and further cost reduction can be achieved.

  10 and 11 may be connected in the same manner as in the examples of FIGS. 4 to 9 to constitute a wall greening air purification system.

In each of the above embodiments, the front surface of the plant growth base 2 is covered with the mesh material 15, but instead of the mesh material 15, the front surface of the plant growth base 2 is covered with a wall greening front panel (not shown). May be. The wall greening front panel may have a hole in which a plant comes out in advance, or a protrusion formed by making a cut in a part of the outer periphery does not have a cut in the outer periphery. You may make the hole from which a plant comes out by bending at a location.

DESCRIPTION OF SYMBOLS 1 ... Wall surface greening air purification apparatus 2 ... Plant growth base 2A ... Greening unit 2a ... Plant growth base part 3 ... Ventilation layer 4 ... Ventilation layer formation member 4A ... Ventilation layer formation member 5 ... Mesh material (breathability member)
6 ... Soil support material 7 ... Outer frame 8 ... Back plate 9 ... Fan 10 ... Duct 11 ... Wall greening air purification device system 12 ... Communication port 20 ... Plant 31 ... Individual frame

Claims (7)

A plant growth base on which a plant is planted on one side, and a ventilation layer forming member formed with a ventilation layer along the other side of the plant growth base, and a breathable member between the plant growth base and the ventilation layer the interposed, the only set a member for supporting the plant growth base material of plant growth base is divided into a plurality of compartments in each compartment in said plant growing base, each separately the plant growing base into a plurality of sections As a member for supporting the plant growth base material for each section, an interstitial soil support material is interposed, and an outer peripheral frame surrounding the outer periphery over the plant growth base and the ventilation layer is provided. A wall greening air purification apparatus in the form of a thin box comprising a thickness portion of the ventilation layer in the outer peripheral frame and a back plate covering an opening portion of the outer peripheral frame opposite to the plant growth base . A plant growth base on which a plant is planted on one side, and a ventilation layer forming member formed with a ventilation layer along the other side of the plant growth base, and a breathable member between the plant growth base and the ventilation layer The plant growth base is divided into a plurality of sections, a member for supporting the plant growth base material is provided for each section, and the ventilation layer forming member is communicated with the ventilation layer of the adjacent wall greening air purification device. Wall greening air purification device with a communication port. The wall surface greening air purification apparatus according to claim 2 , wherein the plant growth base is divided into a plurality of sections and a water-permeable section is provided as a member for supporting the plant growth base material for each section. Wall greening air purification device with interstitial soil support material interposed. The wall surface greening air purification device according to claim 3 , wherein an outer peripheral frame surrounding an outer periphery is provided across the plant growth base and the ventilation layer, and the ventilation layer forming member is a portion of the thickness of the ventilation layer in the outer frame. And a wall-surface greening air purification device in the form of a thin box comprising a back plate that covers an opening portion of the outer peripheral frame opposite to the plant growth base. The wall surface greening air purification apparatus according to claim 2 , wherein the plant growth base is divided into a plurality of sections, and the plant growth base portion of each section is surrounded as a member for supporting the plant growth base material for each section. A wall surface greening air purification apparatus in which an individual frame is provided, and each plant growth base part and the individual frame constitute a greening unit.   The wall surface greening air purification apparatus according to any one of claims 1 to 5, wherein the wall surface greening air purification apparatus is provided with a fan for sending the air to be purified into the ventilation layer.   A wall greening air purification device according to any one of claims 1 to 6, wherein a plurality of the wall greening air purification devices are arranged side by side in contact with each other, and the air to be purified is sent to the ventilation layer of the plurality of wall greening air purification devices. Wall greening air purification system equipped with.

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