JP2000308677A - Method for deodorizing and purifying air using ventilation hole, and ventilation hole body portion having air deodorizing and purifying function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for deodorizing and purifying air using a ventilation hole in which the air flowing to the inside, e.g. in a room from the outside only by providing the ventilation hole, and a ventilation hole body portion used in this method. SOLUTION: This ventilation hole body portion 11 containing a ceramic powder or tourmaline powder having the function to deodorize and purify air in contact therewith is mounted on the ventilation hole, and the air passing through the ventilation hole body portion 11 is brought into contact with and opposite to ceramic powder to tourmaline powder to deodorize and purify the air. The ventilation hole body portion 11 is preferably formed of a material in which ceramic powder or tourmaline powder having the air deodorizing and purifying function is mixed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of deodorizing and purifying air using a ventilation port used for ventilation of a room in a house, and a body of a ventilation port used for this method.

[0002]

2. Description of the Related Art Conventionally, in order to ventilate a room in a house with a corridor or the like (and possibly with the outdoors),
Ventilation openings are provided in each room. FIG. 4 is a diagram showing a conventional ventilation port provided on a wall of a room. FIG.
In (a), reference numeral 1 denotes a wall separating a room and a corridor (or the outside), etc., 2 denotes a ventilation opening formed in a part of the wall 1 in a hollow shape, and 3 denotes both ends of the ventilation opening 2 in the drawing. It is a register attached with screws that do not. This register 3 is provided to prevent the ventilation opening 2 from impairing the beauty of the wall 1, to appropriately regulate the flow rate of air passing through the ventilation opening 2, and to pass insects and rats through the ventilation opening 2. It is attached for the purpose of not doing so. FIG.
FIG. 5B is a front view showing the register 3 of FIG. In this conventional example, the register 3 is made of plastic (made of synthetic resin) and formed in a mesh shape. The conventional register 3 has various shapes, such as a lattice shape, in addition to a mesh shape as shown in FIG. 4B.

The vents shown in FIG. 4 are provided on the wall of an indoor room or the like.
In order to provide indoor ventilation between the house and the outside, the house may be provided on the outer wall of the house. Also, automobiles are provided with ventilation holes in order to ventilate the interior of the vehicle. As described above, in conventional houses and automobiles, ventilation holes are provided in order to ventilate the air in the room or in the vehicle to enhance comfort.

[0004]

However, the above-mentioned conventional vent has only a function of circulating air between the inside and the outside, and does not allow air flowing into a room, indoors, or a car. In order to deodorize or purify, it is necessary for a user or the like to separately provide an air purifier or a deodorant. For example, Japanese Utility Model Application Laid-Open No. 63-157231 discloses "a deodorizing device which is used by being attached to a ventilation opening in a room or a vehicle, and which is provided with a deodorizing agent inside".
However, in order to use this deodorizing device, it is necessary for the user or the like to perform a complicated operation of attaching the deodorizing device to the ventilation port by himself / herself. That is, in the conventional vent, it was not possible to deodorize and purify air in a room, indoors, or in a car without a user or the like separately attaching a deodorizing device or a purifying device.

The present invention has been made in view of such problems of the prior art, and is capable of deodorizing and purifying air flowing from the outside to the interior such as a room, indoors, and a car simply by providing a ventilation port. It is an object of the present invention to provide a method for deodorizing and purifying air using a vent to enable the method, and a body of a vent used for the method.

[0006]

A method for deodorizing and purifying air using a vent according to the present invention for solving the above problems includes a ceramic powder having a function of deodorizing and purifying contacting air. The body of the ventilation port is attached to the ventilation port, and the air passing through the body of the ventilation port is brought into contact with the ceramic powder to deodorize and purify the air. Further, the body of the ventilation opening according to the present invention includes the ceramic powder having a function of deodorizing and purifying the air. The body of the ventilation opening according to the present invention is formed of a material (for example, a material such as plastic, pottery, porcelain, glass, or metal) mixed with ceramic powder having the above-mentioned air deodorizing and purifying function. There should be. Further, in the ventilation opening body according to the present invention, it is preferable that the ceramic powder having the air deodorizing and purifying functions is adhered to the surface of the ventilation opening body by coating or the like. In addition, the ceramic powder contained in the body of the ventilation opening according to the present invention may be about 4-1 to 1-5.
Far infrared rays in the wavelength range of 4 μm (or 6-18 μm)
It should preferably consist of a high-efficiency far-infrared radiator that emits at an emissivity of 0% or more. The ceramic powder contained in the body of the ventilation opening according to the present invention is preferably made of a metal oxide that emits a small amount of radiation, such as thorium oxide or radium oxide. The ceramic powder contained in the body of the ventilation opening according to the present invention is preferably composed mainly of a transition metal oxide that excites oxygen in the air. In the present invention, the oxide of the transition metal is desirably magnetic. Further, the ceramic powder contained in the body of the ventilation opening according to the present invention is preferably a photocatalyst which reacts with light such as titanium oxide. Further, it is desirable that the ventilation opening body according to the present invention has a plurality of plate-like portions arranged in a direction substantially parallel to a direction in which air passes in order to increase a contact area of air. Further, in the method for deodorizing and purifying air using a ventilation opening according to the present invention, a ventilation opening body including tourmaline powder is attached to a ventilation opening, and air passing through the ventilation opening body is formed by the tourmaline powder. It is characterized in that deodorization and negative ionization (purification) are performed. Further, the body of the ventilation opening used in the method for deodorizing and purifying air using the ventilation opening according to the present invention contains tourmaline powder. Further, the body of the ventilation opening according to the present invention is preferably formed of a material (for example, a material such as plastic, pottery, porcelain, glass, and metal) mixed with tourmaline powder. Further, the body of the ventilation opening according to the present invention is preferably formed such that tourmaline powder is adhered to the surface by coating or the like.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 FIG. Embodiment 1 of the present invention will be described with reference to FIG. FIG. 1A is a perspective view showing the ventilation opening body according to the first embodiment. The ventilation opening body 11 is inserted and attached, for example, into the hollow ventilation opening 2 in the wall 1 described with reference to FIG. In the first embodiment, as shown in FIG.
A cubic frame (outer portion) 11a inserted into the ventilation opening, and a plate-like portion provided in the frame 11a, which is substantially in the direction of air passage (see arrow α in the figure). And a plurality of plate-like portions 11b extending in parallel directions. In the first embodiment, the ventilation opening body 11 is also provided with the plurality of plate-shaped portions 11b as described above because the air passing through the inside is separated from the frame 11a.
By contacting not only the plate-shaped portion 11b but also
This is to increase the contact area between the air and the entire body 11 of the ventilation opening. FIG. 1B shows the ventilation port body 11.
FIG. 1 (c) is a view showing a state in which a ventilation port body 11 shown in FIG. 1 (a) is mounted in the ventilation port 2 shown in FIG. 1 (b). It is. FIG. 2 is a front view when the wall 1 and the ventilation opening body 11 shown in FIG. 1C are viewed from the indoor side.

In the first embodiment, the ventilation opening body 11 (consisting of the frame 11a and the plurality of plate-like portions 11b) is made of, for example, activated alumina, silica (silica dioxide), manganese dioxide, oxide, or the like. Materials such as plastics mixed with ceramic powder, such as germanium, which is made of a high-efficiency far-infrared radiator that emits far-infrared rays in a wavelength range of about 4 to 14 μm at an emissivity of 80% or more (prior art in FIG. The resistor 3 may be made of the same material as that conventionally used for forming the register 3, such as plastic or ceramic). In the first embodiment, by forming the ventilation opening body 11 with plastic mixed with the ceramic powder, the outside (corridor, outdoor, etc.)
The air flowing into the room through the ventilation port 2 from the
When passing through the inside of the body 11 of the ventilation opening (when passing through the gap between the respective plate-shaped portions 11b), it comes into contact with the ceramic powder to be deodorized and purified, and as clean air without odor. It will flow into the room.

That is, about 4-1 from the ceramic powder
When far-infrared rays in a wavelength range of 4 μm are emitted, water molecules in the air absorb the far-infrared rays and are separated into H radicals and OH radicals. The H radicals oxidize organic substances, which are odor components in the air, and the OH radicals reduce organic substances, which are odor components, so that the odor components in the air are decomposed and deteriorated, and the air is deodorized. Further, when far infrared rays in a wavelength range of about 4 to 14 μm are emitted from the ceramic powder, water molecules in the air absorb the far infrared rays and are separated into positive ions and negative ions. The negative ions react with and adhere to the positive ions of the odor molecules that cause the odor in the air, so that the odor components in the air are altered and the air is deodorized. Further, when air passes through the ceramic powder so as to come into contact with the ceramic powder, oxygen molecules in the air become active oxygen, so that organic substances, which are odor components in the air, are decomposed by the active oxygen, and deodorization and purification of air can be performed. Done.

Embodiment 2 FIG. In Embodiment 2 of the present invention, the vent body 11 of FIG. 1 is made of a ceramic made of a metal oxide that emits a small amount of radiation (beta ray or alpha ray), such as, for example, thorium oxide or radium oxide. It is made of a material such as plastic or ceramic mixed with powder. In the second embodiment, since the ventilation opening body 11 is made of a material such as plastic or porcelain mixed with the ceramic powder, the air flowing into the room from the outside via the ventilation opening 2 is prevented from flowing into the ventilation opening 2. When passing through the inside of the ventilation body 11, it comes into contact with the ceramic powder to be deodorized and purified, and to flow into the room as clean air without odor.

That is, when radiations such as beta rays and alpha rays are emitted from the ceramic powder and the radiation strikes water molecules in the air, the water molecules become H radicals and O radicals.
Divided into H radicals. The H radicals oxidize organic substances, which are odor components in the air, and cause the OH
Since the radicals reduce organic substances of the odor components, the odor components in the air are decomposed and deteriorated, and the air is deodorized. Further, when the radiation is emitted from the ceramic powder,
Water molecules in the air are ionized and split into positive and negative ions. The negative ions react with and adhere to the positive ions of the odor molecules that are the source of the odor in the air, so that the odor components in the air are altered and the air is deodorized and purified.

Embodiment 3 FIG. In the third embodiment of the present invention, the vent body 11 of FIG. 1 is made of an oxide of a transition metal that excites oxygen in the air, such as manganese dioxide, nickel oxide, zinc oxide, and iron oxide. It is formed of a material such as a plastic or a porcelain mixed with a ceramic powder whose main component is. In the third embodiment, the ventilation port body 11 is made of a material such as plastic or ceramic mixed with the ceramic powder.
When the air passes through the inside of the ventilation body 11, it comes into contact with the ceramic powder to be deodorized and purified, so that the air flows into the room as clean air without odor.

That is, the above-mentioned ceramic powder composed of the oxide of the transition metal takes an electron from oxygen molecules in the air and then returns the electrons to oxygen molecules. When the electrons are returned, the energy level is high. However, in order to return the electrons, the returned oxygen molecules become active oxygen. The active oxygen reacts with the organic substance, which is an odor component in the air, to alter the organic substance, so that the air is deodorized and purified.

Embodiment 4 In the fourth embodiment of the present invention, the ventilation opening body 11 of FIG. 1 uses, for example, a ceramic powder mainly containing “magnetic transition metal oxide” such as magnetite, cobalt oxide, and samarium oxide. It is made of mixed materials such as plastics and ceramics. In the fourth embodiment, the ventilation port body 11 is made of a material such as plastic or ceramic mixed with the ceramic powder.
With this configuration, the air that flows into the room from the outside through the ventilation port 2 is supplied to the ventilation port body 11 in the ventilation port 2.
When it passes through the inside, it is deodorized and purified by contact with the ceramic powder, and flows into the room as clean air without odor.

That is, the above-mentioned ceramic powder composed of the oxide of a transition metal takes an electron from oxygen molecules in the air and then returns the electrons to oxygen molecules. When returning the electrons, the energy level is high. However, in order to return the electrons, the returned oxygen molecules become active oxygen. The active oxygen reacts with the organic substance, which is an odor component in the air, to alter the organic substance, so that the air is deodorized and purified. Also, in particular,
In the fourth embodiment, as described above, the transition-based metal oxide is magnetic, and oxygen molecules in the air are attracted to this magnetism. Great purification effect.

Embodiment 5 In the fifth embodiment of the present invention, the ventilation opening body 11 of FIG.
It is made of a material such as plastic or ceramic mixed with ceramic powder such as zinc oxide or the like, which is made of a photocatalyst (photosemiconductor) that reacts with light. The photocatalyst is activated by absorbing the energy of ultraviolet rays of sunlight or illumination light, and decomposes organic substances that cause odor. In recent years, there has been a technology for coating materials made by mixing photocatalysts such as titanium oxide into fine particles and mixing these fine particles of titanium oxide with a silicon-based resin. The technology of baking titanium on a glass material or the like has already been put to practical use. In the fifth embodiment, the ventilation port body 11 is made of a material such as plastic or ceramic mixed with the ceramic powder (fine particles) of titanium oxide, so that the air flows into the room from the outside via the ventilation port 2. The air is deodorized and purified by coming into contact with the ceramic powder when passing through the ventilation opening body portion 11 in the ventilation opening 2, and flows into the room as clean air having no bad odor.

That is, the ceramic powder composed of a photocatalyst such as titanium oxide decomposes organic substances, which are odor components in the air, when it receives light such as ultraviolet rays. Therefore,
The air that has come into contact with the ceramic powder made of the photocatalyst is deodorized by the decomposition of malodorous components. Further, the ceramic powder composed of the photocatalyst also has an antibacterial action (the photocatalyst is also used in a filter of a conventional air purifier, etc., since it has an antibacterial action). So
When the passing air touches the ceramic powder, many bacteria in the air are lost and the air is cleaned. In the fifth embodiment, the above-described functions and effects (deodorization and purification of air) are achieved by forming the ventilation opening body with a material such as plastic or ceramics mixed with titanium oxide. Then, by coating the surface of the body of the ventilation opening made of, for example, plastic, ceramics, glass, or metal with a coating material containing titanium oxide fine particles, or by coating the titanium oxide fine particles with, for example, a glass ventilation. The same operation and effect as described above can also be obtained by baking on the surface of the mouth body.

Embodiment 6 FIG. FIG. 3 shows a sixth embodiment of the present invention. In FIG. 3A, reference numeral 21 denotes a vent body part according to the sixth embodiment, and 21a denotes the vent body part 21.
It is the frame which comprises. 21b is the frame 21
a are a plurality of plate-like portions provided in the a. The plurality of plate-like portions 21b are arranged in parallel with each other in the horizontal direction in the drawing so that each extends substantially parallel to the air passage direction (see the arrow α in the drawing). FIG. 3B is a cross-sectional view showing a state where the ventilation opening body 21 is attached to both ends of the ventilation opening 2 formed in the wall 1 of the room with screws (not shown). 3B, the ventilation opening body 21 is shown as a cross-sectional view taken along the line BB of FIG. 3A. In the sixth embodiment, the ventilation opening body 2
1 is made of a material such as plastic or ceramic mixed with the same ceramic powder as in any one of the first to fifth embodiments. Therefore, also in the sixth embodiment, the same operation and effect as those in the first to fifth embodiments are produced.

In each of the first to sixth embodiments, the ventilation opening body portions 11 and 21 are made of a material such as plastic or ceramic mixed with ceramic powder (kneaded or the like). In the present invention, for example, the above-described first to sixth embodiments are provided on the surface of the ventilation opening body formed of a material such as plastic, ceramics, glass, or metal.
Even if the ventilation opening body is formed by coating the ceramic powder shown in the above, the same function and effect as described above can be obtained.

In each of the first to sixth embodiments, the plurality of plate-like portions 11b and 21b are arranged parallel to each other in the horizontal direction in the drawing, but the present invention is not limited to this. Instead, for example, they may be arranged parallel to each other in the vertical direction of the figure, or may be arranged parallel to each other in the oblique direction of the figure.

Embodiment 7 Next, a seventh embodiment of the present invention will be described. The ventilation opening body according to the seventh embodiment has the same shape as the ventilation opening body 11 of FIG. In the seventh embodiment, tourmaline powder (having a particle size of, for example, 2 to 4 μm) is added to the plastic or ceramic (the same plastic or ceramic that has been conventionally used for the ventilation opening body) forming the ventilation opening body 11. However, for example, 5 to 1 tourmaline powder per 100 parts by weight of plastic or porcelain
5 parts by weight are dispersed and mixed (kneaded, etc.).

Here, the tourmaline powder will be described. As is conventionally known, tourmaline ore is
It has positive and negative "permanent electrodes" and is approximately
It is a dielectric material in which a weak current of 06 mA continues to flow forever, and has long been called tourmaline. Due to such properties, tourmaline always generates DC static electricity. The magnitude of this electrostatic pressure is inversely proportional to the square of the distance between the positive pole and the negative pole, for example, 2 cm
It is said that the angle of black tourmaline is 5.3V and that of 2cm square red tourmaline is about 3.3V, but that of 0.3μm diameter powder can reach 1,000,000V. Whether it is a powder or a powder, it has a positive electrode and a negative electrode, respectively, and the smaller the crystalline powder, the higher the electrostatic voltage.) For example, JP-A-10-
Japanese Patent No. 299111 discloses a tourmaline ore which is a mineral having a characteristic that a positive electrode and a negative electrode are spontaneously generated at both ends of a crystal. The potential difference between the positive electrode and the negative electrode reaches about one million volts,
When the positive electrode and the negative electrode are connected by a conductive wire, a weak current flows permanently. "It has said.

As described above, tourmaline is a dielectric material having a wavelength of about 11 μm and a weak current of about 0.06 mA continues to flow forever. For example, charge (pyroelectricity) is generated on the surface due to a temperature change, and far infrared rays are generated. The pyroelectric effect that occurs, the piezoelectric effect that generates electric charges (piezoelectricity) on the surface by pressurization and generates far infrared rays, the electricity of air and water that negatively ionizes and alkalizes the surrounding air and water by contact with air and water Decomposition effect (Tourmaline itself is polarized positively and negatively when external action such as heat and pressure acts on tourmaline, and the surrounding air etc. is negatively ionized),
Deodorizing effect (tourmaline electrolyzes moisture in the air to generate hydroxyl ions, and the hydroxyl ions floating in the air combine with the fine particles of odor components in the air and wrap them around. The odor components lose their adhesion. , Ventilated out of the room due to ventilation), antibacterial effect (the sterilization / antibacterial effect and the effect of maintaining the freshness of fresh food have been confirmed by experiments, etc.) It is said to have various effects such as an air purifying effect.

In the seventh embodiment, as described above, tourmaline powder is dispersed and mixed at a predetermined ratio in the plastic or ceramic material forming the ventilation opening body 11 having the shape shown in FIG. ing. Therefore, in the seventh embodiment, by the action of the tourmaline powder, the air passing through the ventilation opening can be deionized, deodorized, and further sterilized, antibacterial, and cleaned.
It is said that negatively ionized air exerts beneficial effects such as calming human autonomic nerves and relieving fatigue, as well as air (including a large amount of negative ions) around waterfall pots and around the coast. ing.

In the seventh embodiment, tourmaline powder is mixed in a predetermined ratio into plastic or ceramic which is a material for forming the ventilation opening body 11, but the present invention is not limited thereto. For example, the ventilation opening body 11 (see FIG. 1) is formed of a conventionally used material such as plastic, ceramics, glass, and metal, and comes into contact with the air of the ventilation opening body 11. The surface may be adhered by applying a tourmaline powder (for example, by mixing it with a predetermined adhesive solvent or the like). Also in this case, by the action of the tourmaline powder attached to the surface of the ventilation opening body 11, the air passing therethrough can be ionized and deodorized, and further sterilized, antibacterial, and cleaned. Further, in the seventh embodiment, the same shape as that of the reference numeral 11 in FIG. 1 is introduced as the shape of the ventilation opening body, but in the present invention, for example, the shape as shown by the reference numeral 21 in FIG. Tourmaline powder may be contained in various shapes of the ventilation body such as the ventilation body.

In each of the first to seventh embodiments, a vent body is attached to a vent for ventilating a room in a house with a corridor or the like, and the room is used by using the vent. Although a method for deodorizing and purifying air flowing into the inside is described, the present invention is not limited to this. The present invention provides, for example, a method for deodorizing and purifying air flowing into a house from the outside by using a ventilation port for ventilating the inside of a house between the outside and the inside of a car, and ventilating the inside of the car between the outside and the outside. The present invention can also be applied to a method of deodorizing and purifying air flowing into the vehicle from outside the vehicle by using a ventilation port for performing the process.

[0027]

As described above, according to the present invention, a body of a ventilation opening containing ceramic powder having a function of deodorizing and purifying air (for example, a material such as plastic or ceramic mixed with the ceramic powder) The ventilation opening body formed by the above or the ventilation opening body having the ceramic powder adhered to the surface thereof by coating or the like is provided in the ventilation opening, so that external air is supplied to the inside of a room or the like through the ventilation opening. When the air passes through the ventilation opening body in the ventilation opening, the air comes into contact with the ceramic powder, is deodorized and purified, and flows into the room as clean air without odor. .

In particular, when the ventilation opening body is provided with a plate-like portion substantially parallel to the air passage direction, when air passes through the ventilation opening body, the air and the ceramic powder are mixed. Since the contact area is large, the air deodorization and
The purifying action is exerted more greatly.

In the present invention, if the tourmaline powder is contained in the body of the ventilation opening, the air passing through the body of the ventilation opening can be deionized and deodorized by the action of the tourmaline powder. (Especially, negatively ionized air is said to have beneficial effects such as calming the autonomic nervous system of a person and relieving fatigue, like air around a waterfall pot or around a coast.)

[Brief description of the drawings]

FIG. 1 is a diagram for explaining Embodiment 1 of the present invention;
(A) is a perspective view showing a ventilation opening body part, (b) is a sectional view showing a ventilation opening, (c) is a sectional view showing a state where a ventilation opening body part is attached to a ventilation opening.

FIG. 2 is a front view showing a state in which a ventilation port body is attached to a ventilation port in the first embodiment.

FIG. 3 is a diagram for explaining Embodiment 6 of the present invention;
(A) is a perspective view showing a ventilation opening body part, and (b) is a sectional view showing a state where ventilation opening body parts were attached to both ends of a ventilation opening.

FIG. 4A is a cross-sectional view showing a state in which a register is attached to both ends of a conventional ventilation port, and FIG. 4B is a front view showing an example of the register.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wall 2 Ventilation opening 11, 21 Ventilation opening body 11a, 21a Frame 11b, 21b Plate-shaped part

Claims (14)

[Claims] 1. A ventilation opening body including ceramic powder having a function of deodorizing and purifying contacting air is attached to a ventilation opening, and air passing through the ventilation opening body is brought into contact with the ceramic powder. A method for deodorizing and purifying air using a ventilation port, wherein the air is deodorized and purified. 2. A ventilation port body attached to a ventilation port, comprising a ceramic powder having a function of deodorizing and purifying air. 3. The ventilation port body according to claim 2, wherein the ventilation port body is formed of a material mixed with ceramic powder having an air deodorizing and purifying function. 4. The ventilation body according to claim 2, wherein ceramic powder having a function of deodorizing and purifying air is adhered to the surface. 5. The high-efficiency far-infrared ray according to claim 2, wherein the ceramic powder emits far-infrared rays in a wavelength range of about 4 to 14 μm at an emissivity of about 80% or more. A ventilation opening body, comprising a radiator. 6. The vent body according to claim 4, wherein the ceramic powder is made of a metal oxide such as thorium oxide or radium oxide which emits a small amount of radiation. Ventilation torso body. 7. The ventilation body according to claim 2, wherein the ceramic powder is mainly composed of a transition metal oxide that excites oxygen in the air. Ventilation body. 8. The ventilation body of claim 7, wherein the oxide of the transition metal is magnetic. 9. The ventilation body according to claim 2, wherein the ceramic powder is a photocatalyst which reacts with light such as titanium oxide. 10. A plurality of plate-like portions arranged in a direction substantially parallel to a direction in which air passes in order to increase an air contact area in the body of the ventilation opening according to any one of claims 2 to 9. A ventilation opening body, comprising: 11. A ventilation port body containing tourmaline powder is attached to a ventilation port, and air passing through the ventilation port body is deodorized and negatively ionized by the action of the tourmaline powder. A method of deodorizing and purifying air using a characteristic ventilation opening. 12. A ventilation port body attached to a ventilation port, characterized by containing tourmaline powder. 13. The ventilation opening body of claim 12, wherein
A ventilation port body formed of a material in which tourmaline powder is dispersed and mixed. 14. The ventilation body of claim 12, wherein:
The body of the ventilation opening, characterized in that tourmaline powder is adhered to the surface.