JP7042374B2 - Filter structure - Google Patents

Description

The present invention relates to a filter structure, particularly to a filter structure attached so as to cover a vent provided in a bathroom door.

11A and 11B are views showing a main part of a conventional bathroom door disclosed in Patent Document 1, in which FIG. 11A is a front view and FIG. 11B is a cross-sectional view thereof.

With reference to the figure, the bathroom door 71 is provided in a bathroom having ventilation equipment such as a ventilation fan, is attached to a vent 72, and has a louver 73 including a louver frame 76 in which a blade 75 and a filter fixing rail 77 are formed. It is composed of a filter 74 that can be attached to and detached from the filter fixing rail 77 so as to cover the inside of the bathroom of the vent 72, and a filter 82 that can be attached to and detached from the filter fixing rail 77 so as to cover the outside of the bathroom of the vent 72.

The roughness of the filter 74 inside the bathroom at the bathroom door 71 is formed to be finer than the roughness of the filter 82 outside the bathroom. As a result, it is possible to reduce the scattering of water vapor and the like to the outside of the bathroom, and it is possible to suppress the growth of mold.

Japanese Unexamined Patent Publication No. 2005-42388

In the conventional bathroom door 71 as described above, the roughness of the filter is finely formed in order to reduce the scattering of water vapor and the like to the outside of the bathroom, and sufficient air permeability through the filter cannot be obtained. It was a thing. Further, since the bathroom door 71 is composed of two filters (filter 74 and filter 82), the air permeability is further impaired.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a filter structure that can obtain optimum air permeability in a bathroom door.

In order to achieve the above object, the invention according to claim 1 is a filter structure attached so as to cover a vent provided in a bathroom door, and has a size capable of covering the entire vent. The sheet-like filter formed and having flexibility and the mounting means formed on one surface of the filter are provided, and the air flow rate of the filter is 600 to 5000 cc / cm ² / sec, and the mounting means is. It is formed of an adhesive and has a mounting strength of 4N or more and 15N or less .

With this configuration, dust and the like can be sufficiently prevented via the filter, and a stable air flow rate can be ensured. In addition, the filter structure does not easily come off when the door is opened or closed. Further, when the filter structure is removed, the adhesive does not easily remain on the door.

The invention according to claim 2 is a filter structure attached so as to cover a vent provided in a bathroom door, and is a flexible sheet formed in a size capable of covering the entire vent. The door is equipped with a shaped filter and mounting means formed on one surface of the filter, the air volume of the filter is 600 to 5000 cc / cm ² / sec, and the door has a stepped portion formed above the vent and is mounted. The means is formed of a pressure-sensitive adhesive, and the filter is provided with a non-attached portion to which the pressure-sensitive adhesive is not applied at predetermined intervals from the upper edge thereof .

With this configuration , dust and the like can be sufficiently prevented via the filter, and a stable air flow rate can be ensured. Further, the non-attached portion of the filter can be aligned with the stepped portion of the door.

The invention according to claim 3 is a filter structure attached so as to cover a vent provided in a bathroom door, and is a flexible sheet formed in a size capable of covering the entire vent. The filter is provided with a shape-like filter and a mounting means on which the filter is mounted so as to surround the circumference of the vent on one side of the filter. The air volume of the filter is 600 to 5000 cc / cm ² / sec, and the mounting means is adhesive. It is formed of an agent and has a mounting strength of 4N or more and 15N or less .

With this configuration , dust and the like can be sufficiently prevented via the filter, and a stable air flow rate can be ensured. In addition, the filter structure does not easily come off when the door is opened or closed. Further, when the filter structure is removed, the adhesive does not easily remain on the door.

As described above, the invention according to claim 1 can sufficiently prevent dust and the like through a filter and secure a stable air flow rate, so that optimum air permeability can be obtained. In addition, the filter structure does not easily come off when the door is opened and closed, so that the mounting state is stable. Further, when the filter structure is removed, the adhesive does not easily remain on the door, so that the burden on the door is reduced.

According to the second aspect of the present invention , optimum air permeability can be obtained because dust and the like can be sufficiently prevented through the filter and a stable air flow amount can be secured. Further, since the non-attached portion of the filter can be aligned with the stepped portion of the door, dust and the like are less likely to accumulate above the stepped portion.

According to the third aspect of the present invention , optimum air permeability can be obtained because dust and the like can be sufficiently prevented through the filter and a stable air flow amount can be secured. In addition, the filter structure does not easily come off when the door is opened and closed, so that the mounting state is stable. Further, when the filter structure is removed, the adhesive does not easily remain on the door, so that the burden on the door is reduced.

It is a schematic front view which shows the filter structure by 1st Embodiment of this invention. It is a schematic enlarged sectional view seen from the II-II line shown in FIG. It is a schematic front view which shows the state which attached the filter structure shown in FIG. 1 to the door of a bathroom. It is a schematic enlarged sectional view seen from the IV-IV line shown in FIG. It is a schematic front view which shows the filter structure by the 2nd Embodiment of this invention, and is the figure which corresponds to FIG. It is a schematic enlarged sectional view seen from the VI-VI line shown in FIG. 5, and is the figure corresponding to FIG. It is a schematic front view which shows the filter structure by the 3rd Embodiment of this invention, and is the figure corresponding to FIG. It is a schematic enlarged sectional view seen from the VIII-VIII line shown in FIG. 7, and is the figure corresponding to FIG. 2. It is a schematic enlarged sectional view seen from the IX-IX line shown in FIG. 7, and is the figure corresponding to FIG. It is a schematic front view which shows the state which attached the filter structure shown in FIG. 7 to the door of a bathroom, and is the figure corresponding to FIG. It is a figure which shows the main part of the conventional bathroom door disclosed in Patent Document 1, (a) is a front view, and (b) is a sectional view thereof.

FIG. 1 is a schematic front view showing a filter structure according to the first embodiment of the present invention, and FIG. 2 is a schematic enlarged cross-sectional view seen from the II-II line shown in FIG. 1, FIG. Is a schematic front view showing a state in which the filter structure shown in FIG. 1 is attached to a bathroom door, and FIG. 4 is a schematic enlarged cross-sectional view seen from the IV-IV line shown in FIG.

With reference to these figures, the filter structure 11 is attached so as to cover the vents 3a and 3b provided in the door 2 of the bathroom 1 having ventilation equipment such as a ventilation fan (not shown), and the vents 3a and 3b are attached. A filter 21 made of a sheet-like non-woven fabric having a rectangular shape in front view and having flexibility, which is formed in a size capable of covering the entire ventilation port 3b, and the ventilation holes 3a and 22 on one surface 22 of the filter 21. It is composed of an attachment means 31 formed at a position where it can be attached across the vent 3b.

The attachment means 31 of the filter structure 11 is a first adhesive 36 formed of a urethane-based adhesive 35 and applied in a streak pattern in the longitudinal direction of the upper portion 24 of the filter 21 on one surface 22 of the filter 21. And a second pressure-sensitive adhesive 37 applied in a streak pattern in the longitudinal direction of the lower portion 25 of the filter 21. The vent 3a and the vent 3b are located between the first adhesive 36 applied to the upper portion 24 of the filter 21 and the second adhesive 37 applied to the lower portion 25 of the filter 21. The first pressure-sensitive adhesive 36 and the second pressure-sensitive adhesive 37, which are the mounting means 31, are formed so that they can be mounted on the floor.

The first pressure-sensitive adhesive 36 is not applied to the first non-attached portion 58 of the filter 21 having a _first predetermined distance L1 from the upper edge 27 of the filter 21. The second pressure-sensitive adhesive 37 is not applied to the second non-attached portion 60 of the filter 21 having a _second predetermined interval L2 from the lower edge 29 of the filter 21. The reason for this configuration will be described later.

The mounting means 31 of the filter structure 11 is a part between the first adhesive 36 applied to the upper portion 24 of the filter 21 and the second adhesive 37 applied to the lower portion 25 of the filter 21. A front view X-shaped adhesive 35 connected to the first adhesive 36 and the second adhesive 37 and formed based on the adhesive 35a and the adhesive 35b is continuous in the longitudinal direction of the filter 21. Is further included. The pressure-sensitive adhesive 35a is connected to the first pressure-sensitive adhesive 36 and the second pressure-sensitive adhesive 37 at an oblique angle. The pressure-sensitive adhesive 35b has an oblique angle opposite to the angle of the pressure-sensitive adhesive 35a (the pressure-sensitive adhesive 35a and the pressure-sensitive adhesive 35b have a virtual line orthogonal to the first pressure-sensitive adhesive 36 and the second pressure-sensitive adhesive 37 as an axis of symmetry. It is bilaterally symmetrical) and is connected to the first pressure-sensitive adhesive 36 and the second pressure-sensitive adhesive 37.

With reference to FIG. 1, the mounting means 31 of the filter structure 11 has a pressure-sensitive adhesive 35c, a pressure-sensitive adhesive 35d, and a pressure-sensitive adhesive at positions where the filter structure 11 can be mounted around the ventilation holes 3a and the ventilation holes 3b shown in FIG. 35e and the pressure-sensitive adhesive 35f are further formed. Specifically, as the mounting means 31 of the filter structure 11, on the right side of the filter 21, the pressure-sensitive adhesive 35c connected to the first pressure-sensitive adhesive 36, and the pressure-sensitive adhesive 35c and the second pressure-sensitive adhesive 37 were connected. A pressure-sensitive adhesive 35d is formed. On the left side of the filter 21, a pressure-sensitive adhesive 35e connected to the first pressure-sensitive adhesive 36 and a pressure-sensitive adhesive 35f connected to the pressure-sensitive adhesive 35e and the second pressure-sensitive adhesive 37 are formed. The reason for this formation will be described later.

At the time of mounting, referring to FIGS. 3 and 4, the filter is made so that the one side 22 on which the mounting means 31 of the filter structure 11 is formed and the side of the door 2 of the bathroom 1 on the washroom 6 side are aligned with each other. The structure 11 is attached to the door 2. At that time, the vent 3a and the vent 3b are attached so as to be located between the first adhesive 36 of the upper portion 24 of the filter 21 and the second adhesive 37 of the lower portion 25. The shape of each of the vents 3a and 3b on the washroom 6 side is formed into a rectangular shape when viewed from the front as shown by the broken line in FIG. Since the filter structure 11 is attached to the door 2 above the vent 3a and below the vent 3b, the filter structure 11 can be easily attached to the door 2 of the bathroom 1.

Further, above the vent 3a and below the vent 3b, a filter structure is attached to the door 2 in the longitudinal direction of the filter 21 via the streaky first adhesive 36 and the streak second adhesive 37. Since 11 is attached, the attached state of the filter structure 11 is stable.

The mounting means 31 of the filter structure 11 is a part between the first adhesive 36 applied to the upper portion 24 of the filter 21 and the second adhesive 37 applied to the lower portion 25 of the filter 21. Further, the pressure-sensitive adhesive 35 having an X-shaped front view continuous in the longitudinal direction of the filter 21 is further included. With this configuration, the number of locations of the door 2 via the mounting means 31 increases, so that the mounting state of the filter structure 11 is further stabilized.

The adhesive 35c, the adhesive 35d, the adhesive 35e, and the adhesive 35f are further formed on the attachment means 31 of the filter structure 11. By forming in this way, the outer surface of the vent 3a and the vent 3b on the washroom 6 side has a filter 21, a first adhesive 36 as an attachment means, a second adhesive 37, and an adhesive 35c. When the air in the washroom 6 flows into the bathroom 1 in the direction of the solid arrow shown in FIG. 4 by the ventilation equipment (not shown) of the bathroom 1 because it is covered with the pressure-sensitive adhesive 35d, the pressure-sensitive adhesive 35e, and the pressure-sensitive adhesive 35f. In addition, dust and dirt contained in the air are less likely to enter the vent 3a and the vent 3b.

With reference to FIG. 4, the door 2 of the bathroom 1 is located at the lower end of the translucent plate 4, and a step 5 approaching the bathroom 1 side is formed above the vent 3a. Here, since the first non-attached portion 58 of the filter 21 of the filter structure 11 can be aligned with the stepped portion 5 of the door 2, dust and the like are less likely to accumulate above the stepped portion 5. Dust and the like accumulated above the first non-attached portion 58 of the filter structure 11 can be removed by replacing the filter structure 11. The first predetermined interval L1 of the _first non-mounting portion 58 is set by the shape of the step portion 5.

The filter structure 11 is formed with a second non-mounting portion 60 as well as the first non-mounting portion 58, and even when the filter structure 11 is turned upside down and mounted on the door 2. The second non-attached portion 60 of the filter 21 can be aligned with the stepped portion 5 of the door 2. Therefore, the usability of the filter structure 11 is improved. The second predetermined interval L ₂ of the second non-mounting portion 60 is set by the shape of the step portion 5.

The air volume of the filter 21 of the filter structure 11 is formed to be 600 to 5000 cc / cm ² / sec. By forming in this way, dust and the like can be sufficiently prevented via the filter 21 and a stable air flow amount can be secured, so that optimum air permeability can be obtained.

The mounting strength of the mounting means 31 of the filter structure 11 is formed to be 4N or more. By forming in this way, the filter structure 11 does not easily come off when the door 2 is opened and closed, so that the state in which the filter structure 11 is attached to the door 2 is stable.

Further, the mounting strength of the mounting means 31 of the filter structure 11 is formed to be 15 N or less. By forming in this way, when the filter structure 11 is removed, the adhesive 35 is unlikely to remain on the door 2, so that the burden on the door 2 is reduced.

FIG. 5 is a schematic front view showing a filter structure according to a second embodiment of the present invention, which corresponds to FIG. 1, and FIG. 6 is a view from the VI-VI line shown in FIG. It is a schematic enlarged cross-sectional view, and is a view corresponding to FIG. 2.

The filter structure 12 according to the second embodiment has the same basic configuration as the filter structure 11 according to the first embodiment shown in FIG. Here, the differences will be mainly described.

With reference to these figures, the filter structure 12 removes the portion corresponding to the adhesive 35b which is the basis of the X shape in the filter structure 11 shown in FIG. 1, and the filter 21 is based only on the adhesive 35a. It is formed continuously in the longitudinal direction of. The pressure-sensitive adhesive 35a is connected to the first pressure-sensitive adhesive 36 and the second pressure-sensitive adhesive 37 at an oblique angle. By forming the filter structure 12 in this way, a portion corresponding to the pressure-sensitive adhesive 35b becomes unnecessary, which is advantageous in terms of manufacturing cost. The filter structure 12 may be formed by removing the portion corresponding to the adhesive 35a while leaving the portion corresponding to the adhesive 35b of the filter structure 11.

FIG. 7 is a schematic front view showing a filter structure according to a third embodiment of the present invention, which corresponds to FIG. 1, and FIG. 8 is a view from the VIII-VIII line shown in FIG. FIG. 9 is a schematic enlarged cross-sectional view corresponding to FIG. 2, and FIG. 9 is a schematic enlarged cross-sectional view seen from the IX-IX line shown in FIG. 7, and is a diagram corresponding to FIG. 2. 10 is a schematic front view showing a state in which the filter structure shown in FIG. 7 is attached to a bathroom door, and is a view corresponding to FIG.

The filter structure 13 according to the third embodiment has the same basic configuration as the filter structure 11 according to the first embodiment shown in FIG. Here, the differences will be mainly described.

With reference to these figures, the filter structure 13 has the shape of a portion of the filter structure 11 shown in FIG. 1 corresponding to the X-shaped pressure-sensitive adhesive 35 based on the pressure-sensitive adhesive 35a and the pressure-sensitive adhesive 35b. It is replaced with the streaky adhesive 35g and the adhesive 35h orthogonal to the adhesive 36 of 1 and the adhesive 37 of the second.

In use, with reference to FIG. 10, the outer surfaces of the vent 3a and the vent 3b are the filter 21, the first adhesive 36, the second adhesive 37, the adhesive 35 g and the adhesive 35h which are mounting means. Since it is covered with, it becomes difficult for dust and the like contained in the air to enter the vent 3a and the vent 3b. It should be noted that the same effect can be obtained even with other shapes as long as they are attached so as to surround the vents 3a and the vents 3b, such as the adhesive 35 g and the adhesive 35h of the filter structure 13. ..

In each of the above embodiments, the filter is formed in a specific shape, but it may be formed in any other shape as long as it can cover the entire vent.

Further, in each of the above embodiments, the filter is formed of a specific material, but may be formed of any other material as long as it is in the form of a flexible sheet.

Further, in each of the above embodiments, the vent is formed in a specific shape, but may be formed in any other shape.

Further, in each of the above embodiments, two vents are formed in the door, but one or three or more vents may be formed.

Further, in each of the above-described embodiments, the mounting means is formed in a specific shape, but if it is formed at a position on one surface of the filter so that it can be mounted across the ventilation holes. It may be formed from a shape other than the above.

Further, in each of the above embodiments, the mounting means is formed of a specific adhesive, but may be formed of other materials such as a hook-and-loop fastener, a tape, an adhesive, and the like. When the filter is made of a non-woven fabric and the mounting means is made of a hook-and-loop fastener, it can be easily attached to and detached from the door, so that the attachmentability is improved. At this time, the mounting strength of the mounting means is preferably 4N or more, preferably 21N or less.

Further, in each of the above embodiments, the mounting strength of the mounting means is 4N or more, but may be less than 4N.

Further, in each of the above embodiments, the mounting strength of the mounting means is 15N or less, but may be larger than 15N.

Test I regarding the air volume of the filter structure 11 according to the first embodiment shown in FIG. 1 and test II regarding the mounting strength were performed.
1. 1. Test conditions for Test I and Test II A. Test conditions of Test I Example 1 to Example 11 and Comparative Example 1 to Comparative Example 3 of the filter 21 of the filter structure 11 shown in FIG. 1 by changing the basis weight (g / m ² ) and the thickness (mm). On the other hand, the aeration amount was measured as follows using the JIS L 1096 A method (Frazil type method). That is, five test pieces of about 200 mm × 200 mm of the filter 21 were adjusted and attached to the Frazier type tester. The suction fan and the air hole were adjusted so that the tilted barometer had a pressure of 125 Pa, and the pressure indicated by the vertical barometer at that time was measured. Then, from the measured pressure and the type of air holes used, the amount of air passing through the test piece (cc / cm ² / sec) was determined from the conversion table attached to the testing machine.
B. Test conditions of test II The filter structure 11 shown in FIG. 1 having a vertical length L of 12 cm and a horizontal length W of 70 cm is attached to the door 2 shown in FIG. 3 to attach the filter structure 11 to the door 2. The tensile strength was measured by pulling with a push-pull gauge so that the central part in the vertical and horizontal directions was pulled and peeled off. Here, the tensile strength means the maximum tensile strength at the time of measurement by the push-pull gauge, and the measured tensile strength (N) is used as the mounting strength (N) at the interface between the filter structure 11 and the door 2. It is supposed to be.
2. 2. Test results and evaluations of Test I and Test II The results and evaluations of Test I and Test II are summarized in Table 1 below.

ここで、試験Ｉ及び試験ＩＩ以外の試験条件と評価を説明する。
（通気性）
フィルター構造体１１の通気性が悪いと換気扇作動時にドア２を開けると換気扇により空気が吸い出されることにより浴室内が負圧になる傾向にあり、その結果、ドア２を開ける時にドア２に負圧により浴室内側へ引張られる力がかかるため通常よりドア２を開けるのに力を要する。従って、本試験では、ドア２にフィルター構造体１１を取り付けた後に換気扇を作動させた際のドア２を開けた時の開け易さにより判断した。具体的には、ドア２を開ける時にそれほど強い力が必要なくドア２を開けることができた場合には評価○とし、ドア２を開ける時に強い力が必要であった場合には評価×とした。
（粘着残り）
恒温恒湿器内に、ドア２の通気口３ａ及び通気口３ｂを覆うようにフィルター構造体１１を取り付けた状態で、温度４０℃・湿度７０％条件下で１ヶ月間保持した後にフィルター構造体１１を取り外した。フィルター構造体１１を取り外した後、粘着剤がドア２に残らなかった場合は評価○、粘着剤が一部でも残った場合は評価×とした。
（ドア開閉時の剥がれ）
ドア２の通気口３ａ及び通気口３ｂを覆うようにフィルター構造体１１を取り付けた状態でドア２の開閉を行った。尚、換気扇は停止した状態で行った。ドア２の開閉後にドア２からフィルター構造体が剥がれなかった場合は評価○、ドア２から一部でもフィルター構造体１１が剥がれた場合は評価×とした。

Here, test conditions and evaluations other than Test I and Test II will be described.
(Breathable)
If the air permeability of the filter structure 11 is poor, when the door 2 is opened when the ventilation fan is activated, air is sucked out by the ventilation fan and the inside of the bathroom tends to have a negative pressure. As a result, the door 2 is negative when the door 2 is opened. Since the force of pulling the inside of the bathroom is applied by the pressure, it takes more force to open the door 2 than usual. Therefore, in this test, the judgment was made based on the ease of opening the door 2 when the ventilation fan was operated after the filter structure 11 was attached to the door 2. Specifically, if the door 2 can be opened without the need for a strong force when opening the door 2, the evaluation is ○, and if the door 2 is required to be strong, the evaluation is ×. ..
(Adhesive residue)
The filter structure 11 is installed in the constant temperature and humidity chamber so as to cover the ventilation holes 3a and 3b of the door 2, and the filter structure is held for one month under the conditions of temperature 40 ° C. and humidity 70%. 11 was removed. After removing the filter structure 11, if the adhesive did not remain on the door 2, the evaluation was ◯, and if even a part of the adhesive remained, the evaluation was ×.
(Peeling when opening and closing the door)
The door 2 was opened and closed with the filter structure 11 attached so as to cover the vent 3a and the vent 3b of the door 2. The ventilation fan was stopped. When the filter structure was not peeled off from the door 2 after opening and closing the door 2, the evaluation was evaluated as ◯, and when the filter structure 11 was partially peeled off from the door 2, the evaluation was ×.

With reference to Table 1, when the air permeability of the filter 21 was 617 cc / cm ² / sec or more, sufficient air permeability was obtained. However, it was found that the air permeability was poor at 562 cc / cm ² / sec. From the above, if it is at least 600 cc / cm ² / sec or more, the filter 21 in the bathroom 1 can obtain air permeability.

Therefore, it was found that when the air volume of the filter 21 is in the range of 600 to 5000 cc / cm ² / sec, dust and the like can be sufficiently prevented through the filter 21 and a stable air volume can be secured. Therefore, from the viewpoint of air permeability, Examples 1 to 11 were preferable.

When the mounting strength of the filter structure 11 was larger than 15N, the adhesive remained on the door 2 when the filter structure 21 was removed from the door 2. Therefore, the mounting strength of the filter structure 11 is preferably 15 N or less. In this case, when the filter structure 11 is removed, the adhesive does not easily remain on the door 2, so that the remaining adhesive is used for the door. The burden of removing from 2 is reduced.

On the other hand, if the mounting strength of the filter structure 11 is less than 4N, the filter structure 11 is peeled off from the door 2 when the door 2 is opened and closed. Therefore, the mounting strength of the filter structure 11 is preferably 4N or more. In this case, the filter structure 11 does not easily come off when the door is opened or closed, so that the mounting state is stable. Therefore, from the viewpoint of air permeability, adhesive residue, and peeling when the door is opened and closed, Examples 1 to 9 are more preferable.

When the vertical length L of the filter structure 11 shown in FIG. 1 is 13 cm and the horizontal length W is 72 cm, the adhesive is an attachment means 31 to the front view area (936 cm ² ) of the filter 21. The ratio P ₁ of the front view area of 35 is about 45%. Further, in the filter structure 11, the front view area of the adhesive 35 which is the mounting means 31 with respect to the front view area (864 cm ² ) of the filter 21 which does not include the first non-mounting portion 58 and the second non-mounting portion 60. The ratio P ₂ of is about 40%. Further, in the filter structure 11, a first non-attaching portion 58, a second non-attaching portion 60, a portion corresponding to the first adhesive 36, and a portion corresponding to the second adhesive 37. The ratio P ₃ of the front view area of the pressure-sensitive adhesive 35 (excluding the first pressure-sensitive adhesive 36 and the second pressure-sensitive adhesive 37), which is the mounting means 31, to the front-view area (648 cm ² ) of the filter 21 not containing It is about 32%. This ratio P ₃ is preferably 37% or less. The filter structure 12 shown in FIG. 5 and the filter structure 13 shown in FIG. ₇ are also preferably set within the range of this ratio P3.

1 ... Bathroom 2 ... Door 3 ... Ventilation holes 11 to 13 ... Filter structure 21 ... Filter 22 ... One side 31 ... Mounting means 35 ... Adhesive The same reference numerals in each figure indicate the same or corresponding parts.

Claims (3)

It is a filter structure that is attached so as to cover the ventilation holes provided in the bathroom door.
A sheet-like filter that is formed to a size that can cover the entire vent and has flexibility.
A mounting means formed on one surface of the filter is provided.
The air volume of the filter is 600 to 5000 cc / cm ² / sec .
The mounting means is made of an adhesive and is
A filter structure in which the mounting strength of the mounting means is 4N or more and 15N or less . It is a filter structure that is attached so as to cover the ventilation holes provided in the bathroom door.
A sheet-like filter that is formed to a size that can cover the entire vent and has flexibility.
A mounting means formed on one surface of the filter is provided.
The air volume of the filter is 600 to 5000 cc / cm. ² / Sec
The door has a step formed above the vent.
The mounting means is made of an adhesive and is
The filter is a filter structure provided with a non-attaching portion to which the adhesive is not applied at predetermined intervals from the upper edge thereof. It is a filter structure that is attached so as to cover the ventilation holes provided in the bathroom door.
A sheet-like filter that is formed to a size that can cover the entire vent and has flexibility.
On one side of the filter, the filter is provided with mounting means for mounting so as to surround the vent.
The air volume of the filter is 600 to 5000 cc / cm. ² / Sec
The mounting means is made of an adhesive and is
A filter structure in which the mounting strength of the mounting means is 4N or more and 15N or less.

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