KR20170111132A - Forced inhale and exhale mask - Google Patents

Abstract

The mask is made of a non-permeable material so as to cover the mouth and nose attached to the face and to block the natural convection of the inside and the outside. The mask has an intake passage And the exhaust fan is mounted on the exhaust passage. Since external air is sucked and exhausted into the mask through the intake fan and the exhaust fan, the breathing fatigue of the wearer Provided is a mask having a function of enhancing aesthetic appearance by inserting air outside the mask into or out of the mask, or inserting a fan and an electrical component into the mask body for discharging the air inside the mask to the outside of the mask.

Description

FORCED INHALE AND EXHALE MASK

More particularly, the present invention relates to a forced excitation / exhalation mask, and more particularly, to a forced excitation / exhalation device having a forced excitation / desorption device that improves aesthetics by inserting air outside the mask into or out of the mask, Mask.

The respirator mask is to be worn on the face to prevent harmful pollutants generated from polluted areas, various emergency situations, industrial fields where air may be polluted, nuclear power plants that can be exposed to radioactive materials, etc. into the human body. (FULL FACE GAS MASK) and HALF FACE GAS MASK, which protect only the respiratory system, while protecting the entire face including eyes and respiratory system.

Among them, the type of the respiratory mask is easier to structure and easier to wear than the face type respiratory mask, and thus it is widely used in industrial fields where it is not necessary to protect the eyes.

Recently, there is a necessity to install a respirator mask in a public place such as a theater or a subway where there is a large number of people with frequent flow and a high risk of accidents such as a fire. Accordingly, a respirator storage box is provided for storing a respirator mask.

Such a respirator mask is mainly a front face type respirator mask, which is capable of reusing the mask body, and is capable of replacing the purifier. The mask body and the purifier are separate from each other.

That is, when the purifying cylinder is stored in a state of being assembled to the mask body, the purifying efficiency of the activated carbon or the paper filter medium, which is the filter material of the purifying cylinder, adsorbs moisture and impurities in the air, Therefore, the canister is packed in a plastic wrapping paper or the like and stored separately.

On the other hand, a dustproof mask refers to a mask used to prevent inhaling harmful dust floating in the air. The anti-dust mask is made similar to the shape of a counter-attack mask in a gas mask.

However, unlike a respiratory mask on which a purifier is mounted, the dustproof mask is provided with a filter having a size smaller than that of the purifier, even when the mask body is made of a permeable material through which harmful dust is filtered or when the mask body is made of a non- It is common.

A wearer of a respirator or a dust-proof mask equipped with a purifier can only breathe air that passes through a purifier or filter and enters and exits through a respirator or dust mask.

There was a difficulty in sucking a sufficient amount of air from the outside through natural breathing, and there was a limit that the wearer could easily be fatigued.

As a result, a PAPR (POWERED AIR PURIFYING RESPIRATOR) mask, which forcibly introduces outside air into the mask through the fan, has emerged.

However, the conventional PAPR mask generally includes a fan provided outside the mask, an electrical component provided at one side of the fan to operate the fan, and an air pipe extending from the fan and injecting outside air into the mask.

That is, the wearer of the PAPR mask had to wear a fan, an electric component, and an air pipe in addition to the mask.

Particularly, when the fan, the electric component, and the air pipe are positioned outside the mask, the mask appearance design itself is difficult and it is difficult to improve the aesthetics of the mask appearance.

Registered Utility Model No. 20-0257107 (Nov. 30, 2001)

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is an object of the present invention, which has been devised in view of the above circumstances, to provide a method and apparatus for inhalation of ambient air, minimizing respiratory fatigue of a wearer, Which is provided with a fan body and an electrical component to be discharged into the mask body, thereby improving the appearance.

It is also an object of the present invention to provide a forced draft mask which makes the breathing of a mask wearer more smooth by forming an inserting passage for guiding air outside the mask to the inside of the mask and an exhaust passage for guiding the air inside the mask to the outside of the mask in an impermeable mask .

It is another object of the present invention to provide a forced air intake and exhaust mask in which air is prevented from flowing in addition to the air flow through the intake passage and the exhaust passage by forming a seal on a predetermined portion of the mask contacting the face.

In order to accomplish the above object, according to an embodiment of the present invention, a forced excitation / exhalation device mask includes a mask formed of a non-permeable material to cover a mouth and a nose attached to a face and to block fluid flow between the outside and the inside, An intake passage and an exhaust passage are formed in the mask so as to communicate with each other, an intake fan is mounted on the intake passage, and an exhaust fan is mounted on the exhaust passage.

Further, a sealing may be formed at the contact portion with the face, and the sealing may be silicone or rubber.

Further, the mask is made to have a predetermined thickness, and the intake passage is bored toward the center point of the mask from the upper side or the lower side of the mask while maintaining a predetermined depth from the outer side surface of the mask so as to be horizontal with the outer side surface of the mask having curvature , And an intake hole may be formed inside the mask so that the longitudinal end of the intake passage is opened toward the inside of the mask.

Further, the mask is made to have a predetermined thickness, and the exhaust passage extends from the left or right side or the lower side of the mask toward the center axis in the height direction of the mask so as to maintain a predetermined depth from the outer surface of the mask so as to be horizontal with the outer side surface of the mask having the curvature And an exhaust hole is formed inside the mask with the longitudinal end of the exhaust passage opened toward the inside of the mask.

Further, an intake filter is provided in the intake passage so as to adsorb foreign matter in the air flowing into the intake passage, and the intake filter can be positioned in front of the intake fan so that the intake fan does not come into contact with foreign matter in the air.

Further, a battery mounting portion is mounted on the mask, on which a battery for applying electric power to the intake fan and the exhaust fan is mounted, and is electrically connected to the battery mounting portion, the intake fan and the exhaust fan, and a control circuit for controlling the operation of the intake fan and the exhaust fan .

Further, in order to fix the position of the mask, a plurality of fixing rods may be provided on the outer side of the mask, or a fixed cover may be covered on the outer side of the mask.

In order to accomplish the above object, a forced excitation / exhalation device mask according to an embodiment of the present invention includes a mask formed of a non-permeable material so as to cover a mouth and a nose attached to the face and to block fluid flow between the outside and the inside, A frame including an inner side surface, an outer surface formed with an intake path for guiding air outside the mask to the inside of the mask, and an exhaust path for guiding the air inside the mask to the outside of the mask, and a cover attached to the frame to cover the exhaust path and the intake path An intake fan is mounted on the intake passage, and an exhaust fan is mounted on the exhaust passage.

Further, the exhaust passage and the intake passage may include an outer hole respectively opened into the atmosphere, and an exhaust hole or an intake hole penetrating the frame and opening into the mask.

In addition, the intake passage includes an intake tunnel portion protruding from the frame. The intake tunnel portion has a tubular shape in which one end is closed. The other end opened in the intake tunnel portion forms an outer hole exposed to the atmosphere. An intake hole communicating with the tunnel portion and the inside of the mask is formed, and a longitudinal view of the intake tunnel portion can be opened.

Further, the exhaust passage includes an exhaust tunnel portion protruding from the frame. The exhaust tunnel portion has a curved shape in which both longitudinal ends of the exhaust tunnel portion abut the lower end in the height direction of the frame, and the center thereof contacts the closed end of the intake tunnel portion. An exhaust hole communicating the inside of the exhaust tunnel portion and the inside of the mask is formed inside the exhaust tunnel portion, and a longitudinal view of the exhaust tunnel portion can be opened.

Further, the exhaust passage includes an exhaust tunnel portion protruding from the frame. The exhaust tunnel portion is in the form of a tube whose one end is closed. The other end opened in the exhaust tunnel portion forms an outer hole exposed to the atmosphere. Inside the exhaust tunnel portion, An exhaust hole communicating with the tunnel portion and the inside of the mask is formed, and a longitudinal view of the exhaust tunnel portion can be opened.

Further, an intake filter is provided in the intake passage so as to adsorb foreign matter in the air flowing into the intake passage, and the intake filter can be positioned in front of the intake fan so that the intake fan does not come into contact with foreign matter in the air.

Further, a battery mounting portion is mounted on the frame to which a battery for applying electric power to the intake fan and the exhaust fan is mounted, and is electrically connected to the battery mounting portion, the intake fan and the exhaust fan, and a control circuit for controlling the operation of the intake fan and the exhaust fan, .

Further, in order to fix the frame, a plurality of fixing straps may be provided on the outer side of the frame, or a fixing cover may be covered on the outer side of the frame or the cover.

According to the present invention, since external air is sucked and exhausted into the mask through the intake fan and the exhaust fan, breathing fatigue of the wearer is minimized, and the air outside the mask is taken in and out by the mask, The fan and the electrical parts to be discharged are embedded in the mask body, thereby improving the appearance.

In addition, since the intake passage and the exhaust passage are formed independently of each other, the fact that the air outside the mask flows into the mask and the air inside the mask are discharged to the outside can be smoothly performed without conflict.

Also, the amount of air flowing into the mask and the amount of air discharged to the outside from the mask can be adjusted by taking into account the wearer's breathing ability or environment through the control circuit.

In addition, contamination of the inside of the mask can be prevented by replacing the intake filter and cleaning the intake passage.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing an example of a forced-absorption /
Fig. 2 is an exemplary view of the forced intake and exhaust mask of Fig. 1,
Fig. 3 is an illustration of an example of a forced intake and exhaust mask of Fig. 1,
FIG. 4 is a block diagram of a control circuit provided in the forced excitation /
5 is a cross-sectional view of the main part of the forced-absorption /
FIG. 6 is an exemplary view of a forced-discharge type intake and exhaust mask of a second embodiment of the present invention,
FIG. 7 is an exemplary view of a frame provided in the forced excrement /
8 is an exemplary view of a frame provided in the forced excrement /
Fig. 9 is an exemplary view of a frame provided in the forced-absorption /
FIG. 10 is an exemplary view of a cover provided in the forced-absorption /
Fig. 11 is an illustration of a sealing provided in the forced-discharge intake / exhaust device mask of Fig. 6; Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a detailed description of preferred embodiments of the present invention will be given with reference to the accompanying drawings. In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

Embodiments in accordance with the concepts of the present invention are capable of various modifications and may take various forms, so that specific embodiments are exemplified and will be described in detail in this specification or application.

It is to be understood, however, that it is not intended to limit the embodiments according to the concepts of the present invention to the particular forms of disclosure, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, .

On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

Other expressions that describe the relationship between components, such as "between" and "between" or "neighboring to" and "directly adjacent to" should be interpreted as well.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise.

In this specification, the terms "comprises ", or" having ", and the like, are intended to specify the presence of stated features, integers, , &Quot; an ", " an ", " an "

As shown in Figs. 1 to 5, the forced excrement and exterminator mask of the first embodiment of the present invention includes a face mask attached to the face and covering the mouth and nose, and a mask M An intake path 100 and an exhaust path 200 are formed in the mask M so as to communicate with the outside of the mask M and the intake fan 300 is mounted in the intake path 100, And an exhaust fan (400) is mounted on the furnace (200).

The impermeable material forming the mask M may be an ABS resin (ACRYLONITRILE-BUTADIENE-STYRENE RESIN; polymer of styrene-acrylonitrile) or POLYCARBONATE. Alternatively, it may be PVC or polyester, and if necessary, iron or an alloy may be used.

In one embodiment of the present invention, the mask M is formed with a seal 500 at a portion in contact with the face. The sealing 500 is formed of silicon or rubber. The inside of the mask M is tightly sealed by the sealing 500. The mask M may be attached to the face through the seal 500 when the sealant 500 is applied with an adhesive material.

The mask M is fabricated to have a predetermined thickness. The mask M is formed into a dome-shaped or hemispherical shape.

The intake passage 100 is formed so as to extend from the upper side of the mask M toward the center point of the mask M while maintaining a predetermined depth from the outer side surface of the mask M so as to be horizontal with the outer side surface of the mask M having the curvature, do.

The intake port 110 is formed inside the mask M so that the longitudinal end of the intake passage 100 is bent toward the inside of the mask M. [

The thickness of the mask M is preferably at least 0.3 cm or more. It is preferable that the cross section of the intake passage 100 is formed so as to have a minimum width of 0.3 centimeters, a length of 1 centimeter, a maximum width of 4 centimeters, and a length of 4 centimeters.

The cross-section of the intake hole 110 is preferably made to be a minimum width of 0.3 centimeters, a length of 1 centimeter, a maximum width of 4 centimeters and a length of 4 centimeters.

It is preferable that the intake fan 300 has a cross section of at least 1 centimeter by 1 centimeter, a maximum width of 4 centimeters by 4 centimeters, and a thickness of at least 0.4 centimeter and at most 3 centimeters.

The intake passage 100, the intake hole 110, and the intake fan 300 may be formed in an elliptical shape or a circular shape in addition to a rectangular shape in cross section.

The exhaust passage 200 is provided at a predetermined depth from the outer surface of the mask M so as to be horizontal with the outer surface of the mask M having a curvature and extends in the height direction of the mask M from the left and right sides of the mask M And is punched toward the central axis.

An exhaust hole 210 is formed inside the mask M with the longitudinal end of the exhaust passage 200 opening toward the interior of the mask M. [ An intake filter 111 is provided between the other longitudinal end of the exhaust passage 200 opened to the outside and the intake fan 300.

It is preferable that the exhaust passage 200 is formed so that its cross section has a minimum width of 0.3 centimeters, a height of 1 centimeter, a maximum width of 4 centimeters and a height of 4 centimeters.

The exhaust hole 210 is preferably formed such that its cross section is at least 0.3 centimeters by 1 centimeter, at most 4 centimeters by 4 centimeters.

The exhaust fan 400 is preferably manufactured such that its cross section is at least 1 centimeter by 1 centimeter, at most 4 centimeters by 4 centimeters, and a thickness of at least 0.4 centimeter and at most 3 centimeters.

The exhaust passage 200, the exhaust hole 210, and the exhaust fan 400 may have an elliptical shape or a circular shape in addition to a rectangular cross section.

A battery mounting part 600 is formed in the mask M to which a battery for applying power to the intake fan 300 and the exhaust fan 400 is mounted.

The mask M is provided with a control circuit 700 that is electrically connected to the battery mounting portion 600, the intake fan 300 and the exhaust fan 400 and controls the operation of the intake fan 300 and the exhaust fan 400 .

The control circuit 700 is detachably attached to the mask M and downloads an operation program through a computer or a cellular phone. That is, the operations of the intake fan 300 and the exhaust fan 400 can be adjusted according to the program operation.

In addition, the mask M is provided with a plurality of sensors capable of sensing the face. The sensor may be provided in the sealing 500 or the intake fan 300 and the exhaust fan 400.

The control circuit 700 receives the wear signal generated by the sensor and then applies power from the battery to the intake fan 300 and the exhaust fan 400 to operate the intake fan 300 and the exhaust fan 400.

A plurality of fixing straps 800 are provided on the outside of the mask M so as to fix the position of the mask M. [ The fixing strap 800 is wound around the ear or wound around the head.

Alternatively, the fixed cover may be covered on the outside of the mask M, and the fixed cover may be covered on the head in the form of a hood so that the position of the mask M may be fixed.

6 to 11, the forced excrement and exterminator mask of the second embodiment of the present invention comprises a mask M ' formed of a non-permeable material to cover the mouth and nose attached to the face, An air intake passage 100 for guiding the outside air of the mask M to the inside of the mask M and an air introducing means for guiding the air inside the mask M to the outside of the mask M, And a cover 1000 attached to the frame 900 to cover the exhaust passage 200 and the intake passage 100. The frame 900 includes an outer side surface 920 on which an exhaust passage 200 is formed .

An intake fan 300 is mounted on the intake passage 100 and an exhaust fan 400 is mounted on the exhaust passage 200.

In the second embodiment of the present invention, the exhaust passage 200 and the intake passage 100 are provided with an outer hole 921 each opened to the atmosphere, and an exhaust hole 921 which penetrates the frame 900 and opens into the mask M, Hole 210 or an intake hole 110. [

The intake passage 100 includes an intake tunnel portion 930 protruding from the frame 900. The intake tunnel portion 930 has a tubular shape with one end closed.

The intake tunnel portion 930 is formed so as to protrude toward the center from the lower portion of the frame 900 so that the other open end of the intake tunnel portion 930 forms an outer hole 921 exposed to the atmosphere.

An intake hole 110 is formed inside the intake tunnel portion 930 to communicate with the interior of the mask M and the intake tunnel portion 930.

An intake fan 300 is provided in the intake hole 110 and an intake filter 111 is provided between the intake fan 300 and the outer hole 921. The intake filter 111 adsorbs foreign substances in the air. Thus, the intake fan 300 is prevented from contacting the atmospheric foreign matter.

In addition, a longitudinal view of the intake tunnel portion 930 is pierced. The foreign matter introduced into the intake tunnel portion 930 can be removed or replacement of the intake filter 111 can be facilitated since the longitudinal view of the intake tunnel portion 930 is perforated. A longitudinal lengthwise view of the intake tunnel portion 930 is covered by the cover 1000. [

The exhaust passage 200 includes an exhaust tunnel portion 940 protruding from the frame 900. The exhaust tunnel portion 940 protrudes outward from the frame 900 in the form of a curved line whose both ends in the longitudinal direction are in contact with the lower end in the height direction of the frame 900 and whose center is in contact with the closed end of the intake tunnel portion 930 . Alternatively, the exhaust tunnel portion 940 may be formed on one side of the intake tunnel portion 930 in the same straight pipe shape as the intake tunnel portion 930 instead of the curved shape.

Both ends in the longitudinal direction of the exhaust tunnel portion 940 form an outer hole 921 exposed to the atmosphere. An exhaust hole 210 communicating with the interior of the mask M is formed in the exhaust tunnel portion 940 inside the exhaust tunnel portion 940. An exhaust fan 400 is mounted in the exhaust hole 210.

Also, the exhaust tunnel portion 940 is also pierced in the longitudinal direction so as to be able to flow into the exhaust tunnel portion 940 and remove foreign substances blocking the exhaust tunnel portion 940.

The longitudinal direction view of the exhaust tunnel portion 940 is also covered by the cover 1000. [

In the second embodiment of the present invention, the control circuit 700 and the battery mounting portion 600 are formed outside the frame 900. More precisely, the control circuit 700 and the battery mounting part 600 are formed on one side of the exhaust tunnel part 940 and covered with the cover 1000 so as not to be exposed to the outside.

Particularly, the cover 1000 is provided with a control button 1100 for transmitting an operation signal to the control circuit 700. The control button 1100 transmits an operation signal to the control circuit 700 according to the time and interval at which the control button 1100 is operated.

The control circuit 700 compares the operation signal of the control button 1100 with a predetermined set signal and operates the suction fan 300 and the exhaust fan 400 in a preset operating state.

For example, when the control button 1100 is firstly depressed briefly once, the exhaust fan 400 and the intake fan 300 are operated, and the speeds of the intake fan 300 and the exhaust fan 400 are classified into a weak section, a middle section, It operates at the set speed of the set short interval.

In this state, when the control button 1100 is pressed briefly once, the speeds of the intake fan 300 and the exhaust fan 400 are increased from the intermediate speed to the intermediate speed. When the control button 1100 is pressed briefly once in a state in which the intake fan 300 and the exhaust fan 400 are operated at the intermediate speed, the intake fan 300 and the exhaust fan 400 ) Is changed.

When the control button 1100 is pressed briefly once in a state in which the intake fan 300 and the exhaust fan 400 are operated at the strong section speed, the intake fan 300 and the exhaust fan 400 are operated again at about the section speed.

That is, the speeds of the intake fan 300 and the exhaust fan 400 are repeatedly changed in the weak section, the middle section, and the strong section according to the operation of the control button 1100.

When the control button 1100 is depressed in a state where the intake fan 300 and the exhaust fan 400 are operated, the operation of the intake fan 300 and the exhaust fan 400 is stopped.

In the frame 900 of the second embodiment of the present invention, the frame 900 is provided with a sealing 500 as shown in Fig. The seal 500 is made of the same material as the seal 500 provided in the first embodiment.

A plurality of fixing straps (not shown) may be provided on the outer side of the frame 900 to fix the frame 900 or a fixed cover (not shown) may be covered on the outer side of the frame 900 or the cover 1000 Loses.

According to the forced intake and exhaust gas mask of the present invention configured as above, external air is sucked and exhausted into the mask M through the intake fan 300 and the exhaust fan 400, thereby minimizing the breathing fatigue of the wearer.

Particularly, since the intake passage 100 and the exhaust passage 200 are formed independently of each other, the fact that the outside air of the mask M is introduced into the mask M and the inside air of the mask M are discharged to the outside It is done smoothly.

The amount of air flowing into the mask M and the amount of air exhausted from the inside of the mask M to the outside can be adjusted in consideration of the wearer's breathing ability or the environment through the control circuit 700, The inside of the mask M can be prevented from being contaminated by washing the exhaust gas passage 100 and the exhaust passage 200.

It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.

It is therefore to be understood that the embodiments described above are illustrative in all aspects and not restrictive.

The scope of the present invention is defined by the appended claims rather than the foregoing detailed description, and all changes or modifications derived from the meaning and scope of the claims and the equivalents thereof are included in the scope of the present invention Should be interpreted.

100: intake passage
110: Intake hole
111: Intake filter
200: with exhaust pipe
210: Exhaust hole
300: suction fan
400: Exhaust fan
500: Sealing
600: Battery mounting part
700: control circuit
800: Fixing strap
900: frame
910: My side
920: Outer side
921: outer hole
930: Intake tunnel section
940: exhaust tunnel part
1000: cover
1100: Control button
M: Mask

Claims (15)

1. A mask formed of a non-permeable material to adhere to the face and cover the mouth and nose, and to block fluid flow between the outside and the inside,
An intake passage and an exhaust passage are formed in the mask so as to communicate the outside and the inside of the mask,
An intake fan is mounted on the intake passage,
And an exhaust fan is mounted on the exhaust passage.
The method according to claim 1,
A seal is formed at a contact portion with the face,
Wherein the sealing is silicone or rubber.
The method according to claim 1,
Wherein the mask is made to have a predetermined thickness,
The intake passage is pierced from an upper side or a lower side of the mask toward a center point of the mask while maintaining a predetermined depth from an outer side surface of the mask so as to be parallel to an outer surface of the mask having a curvature,
Wherein a lengthwise end of the intake passage is bent so as to open toward the inside of the mask, and an intake hole is formed inside the mask.
The method according to claim 1,
Wherein the mask is made to have a predetermined thickness,
The exhaust passage is pierced from the left or right side or the lower side of the mask toward the center axis in the height direction of the mask while maintaining a predetermined depth from the outer side surface of the mask so as to be horizontal with the outer side surface of the mask having the curvature,
And a longitudinal direction end of the exhaust passage is opened toward the inside of the mask, and an exhaust hole is formed inside the mask.
The method according to claim 1,
An intake filter is provided in the intake passage to adsorb foreign matter in the air introduced into the intake passage,
Wherein the intake filter is positioned in front of the intake fan so that the intake fan is not in contact with foreign matter in the air.
The method according to claim 1,
Wherein a battery mounting portion on which the battery for applying electric power to the intake fan and the exhaust fan is mounted is formed on the mask,
Wherein the mask is provided with a control circuit electrically connected to the battery mounting portion, the intake fan, and the exhaust fan, the control circuit controlling operation of the intake fan and the exhaust fan.
The method according to claim 1,
To fix the position of the mask,
Wherein a plurality of fixing straps are provided on the outer side of the mask or a fixed cover is covered on the outer side of the mask.
1. A mask formed of a non-permeable material to adhere to the face and cover the mouth and nose, and to block fluid flow between the outside and the inside,
A frame including an inner surface in close contact with the face, an intake passage for guiding the mask outside air into the mask, and an exhaust passage for guiding the air inside the mask to the outside of the mask;
And a cover attached to the frame to cover the exhaust passage and the intake passage,
An intake fan is mounted on the intake passage,
And an exhaust fan is mounted on the exhaust passage.
9. The method of claim 8,
Wherein the exhaust passage
An outer hole each opened into the atmosphere;
Each of which includes an exhaust hole or an intake hole penetrating the frame and opening into the mask.
9. The method of claim 8,
The intake passage
And an intake tunnel portion protruding from the frame,
Wherein the intake tunnel portion is in the form of a tube whose one end is closed,
The other end of the air intake tunnel portion is opened to form an outer hole exposed to the atmosphere,
An intake hole communicating with the interior of the intake tunnel portion and the interior of the mask is formed inside the intake tunnel portion,
Wherein the longitudinal direction view of the intake tunnel portion is opened.
9. The method of claim 8,
In the exhaust passage,
And an exhaust tunnel portion protruding from the frame,
Wherein the exhaust tunnel portion has a curved shape in which both longitudinal ends of the exhaust tunnel portion abut the lower end portion in the height direction of the frame and the center thereof contacts the closed end of the intake tunnel portion,
Both ends in the longitudinal direction of the exhaust tunnel portion form an outer hole exposed to the atmosphere,
An exhaust hole communicating the exhaust tunnel portion and the inside of the mask is formed inside the exhaust tunnel portion,
Wherein a longitudinal view of the exhaust tunnel portion is opened.
9. The method of claim 8,
In the exhaust passage,
And an exhaust tunnel portion protruding from the frame,
The exhaust tunnel portion is in the form of a tube whose one end is closed,
The other end of the exhaust tunnel portion being opened forms an outer hole exposed to the atmosphere,
An exhaust hole communicating the exhaust tunnel portion and the inside of the mask is formed inside the exhaust tunnel portion,
Wherein a longitudinal view of the exhaust tunnel portion is opened.
9. The method of claim 8,
An intake filter is provided in the intake passage to adsorb foreign matter in the air introduced into the intake passage,
Wherein the intake filter is positioned in front of the intake fan so that the intake fan is not in contact with foreign matter in the air.
9. The method of claim 8,
Wherein a battery mounting portion on which the battery for applying electric power to the intake fan and the exhaust fan is mounted is formed on the frame,
Wherein the frame is provided with a control circuit electrically connected to the battery mounting portion, the intake fan, and the exhaust fan, the control circuit controlling the operation of the intake fan and the exhaust fan.
9. The method of claim 8,
To fix the position of the frame,
Wherein a plurality of fixing straps are provided on the outer side of the frame or a fixing cover is covered on the frame or the outer side of the cover.

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