KR20220063015A - Wearable air purifier - Google Patents

Abstract

Disclosed is a wearable air purifier which is improved to have a filtering function for air discharged to the outside by exhalation. According to the present invention, the wearable air purifier comprises: a main body having a discharge module assembly hole formed in the lower part of a discharge space for a user's exhalation; a discharge filter housing attached to and detached from the main body through the discharge module assembly hole and having a discharge hole and support body formed inside the main body; and a discharge filter disposed inside the discharge filter housing. Accordingly, the air is discharged through the discharge space, the discharge filter housing, and the discharge filter by exhalation and the discharge filter is supported by the support body and the upper structure of the discharge module assembly hole when the discharge filter housing is inserted into the main body through the discharge module assembly hole.

Description

Wearable air purifier {WEARABLE AIR PURIFIER}

The present invention relates to a wearable air purifier, and more particularly, to a wearable air purifier improved to have a filtering function for air discharged to the outside by exhalation.

In general, a mask is widely used to prevent fine dust, yellow dust, harmful substances, bacteria, germs, and viruses from being inhaled into the respiratory tract.

The mask can be used in industrial sites with a lot of fine dust or harmful substances, medical sites where bacteria, germs and viruses can exist, and everyday living spaces where fine dust, yellow dust, and harmful substances can be distributed.

In particular, in order to prevent the spread of recently highly contagious germs or viruses, it is necessary to wear a mask at all times.

The above-mentioned masks are usually made for one-time use. As it has a high-functional blocking effect, there is discomfort in breathing in and out.

In order to solve this problem, a wearable air purifier has been developed.

The wearable air purifier has a structure that can be attached to and detached from the user's face, and is configured to have an intake valve for inhalation and an exhaust valve for exhalation. In addition, the wearable air purifier may be configured to have a nose cup made of an adhesive and flexible material in order to increase a feeling of closeness to the user's face.

The wearable air purifier is configured to have a filter for filtering intake air. The filter for intake may be configured at a position where air of the wearable air purifier is introduced, and may be, for example, configured in an intake valve. Therefore, in the case of inhalation, the air filtered by the filter may be supplied to the inside of the wearable air purifier.

However, the wearable air purifier does not have a filtering function for exhausted air. Therefore, in the case of exhalation, the air emitted by the user may be discharged to the outside of the wearable air purifier without filtration.

For example, when the carrier wears the wearable air purifier, the wearable air purifier may provide the carrier with air filtered from external harmful fine dust, bacteria, and germs with respect to the inhaled breath. However, the wearable air purifier discharges germs or viruses released from carriers by exhalation to the outside without filtration.

Therefore, it is difficult for a general wearable air purifier to prevent secondary propagation of germs or viruses emitted by the exhalation of the carrier.

In particular, in a wearable air purifier, it is common to configure an intake valve and an exhaust valve on the front surface of a frame having a large area.

The air discharged through the exhaust valve configured in the front can be spread quickly and widely over a large area in the direction facing the user. Therefore, when the carrier discharges germs or viruses through the exhaust valve by exhalation, the germs or viruses can quickly spread over a large area.

In particular, when the talker is located in front of the carrier, germs or viruses contained in the air discharged through the exhaust valve in the front can be easily transmitted to the talker.

For the above reasons, the wearable air purifier needs to be developed to have a filtering function for the air discharged to the outside by exhalation, and needs to be developed so that the discharged air is spread over a relatively narrow area.

An object of the present invention is to provide a wearable air purifier having a filtering function for air discharged to the outside by exhalation.

Another object of the present invention is to provide a wearable air purifier having a structure in which air discharged by exhalation spreads to a relatively narrow area.

The wearable air purifier of the present invention includes: a main frame and a cover frame that have an exhaust space for a user's exhalation, and are coupled to each other so as to have an exhaust module assembly hole at a lower portion of the exhaust space; an exhaust filter housing configured in the exhaust module assembly hole and having an exhaust hole and a support body formed therein; and an exhaust filter supported by the support and seated inside the exhaust filter housing, wherein when the exhaust filter housing is inserted into the exhaust module assembly hole, the exhaust filter is inserted between the support and the exhaust module assembly hole It is characterized in that it is supported by a structure.

A wearable air purifier of the present invention includes: a main frame having an exhaust port for discharging internal air by a user's exhalation; a cover frame configured in front of the main frame and forming an exhaust space connected to the exhaust hole by mutual coupling with the main frame; an exhaust valve configured to the exhaust port to open and close the exhaust port by the exhalation and inhalation; an exhaust filter case detachable between the exhaust valve and the exhaust port and having an exhaust hole inside the body; and an exhaust filter seated inside the exhaust filter case, wherein air is exhausted through the exhaust filter and the exhaust space by the exhalation, and the exhaust space is configured to exhaust air to the lower part of the user's face is characterized by

The wearable air purifier of the present invention is configured such that the exhaust filter housing in which the exhaust filter is seated is coupled to the exhaust module assembly hole at the bottom.

Therefore, the present invention can be discharged after the air discharged to the outside by exhalation is filtered by the exhaust filter. It is possible to prevent the air containing internal germs or viruses from being discharged to the outside of the wearable air purifier by exhalation.

Therefore, when the carrier uses the wearable air purifier, it is possible to prevent secondary transmission of germs or viruses by the carrier.

In addition, the wearable air purifier of the present invention is configured to discharge internal air to the lower portion, and the air by exhalation may be discharged to the lower portion of a relatively narrow area without being discharged to the front where the talker can be located.

Therefore, when the carrier discharges germs or viruses through the exhaust valve by exhalation, the germs or viruses can spread to the lower part of a relatively narrow area while avoiding the front where the talker is located. As a result, rapid spread of germs or viruses over a large area can be suppressed.

1 is an exploded perspective view of a preferred embodiment of the wearable air purifier of the present invention.
2 is a perspective view showing a state in which the exhaust filter housing is separated in the assembled embodiment of FIG. 1;
3 is an exploded perspective view illustrating an exhaust filter and an exhaust filter housing applied to the embodiment of FIG. 1;
Figure 4 is a cross-sectional view of the embodiment for explaining the air flow for exhalation.
5 is an enlarged cross-sectional view of a portion of the embodiment showing a state before the coupling of the exhaust filter housing.
6 is a partially enlarged cross-sectional view showing a state after the exhaust filter housing is coupled;
7 is a cross-sectional view showing another embodiment of the wearable air purifier of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The terms used in the present specification and claims are not limited to a conventional or dictionary meaning, and should be interpreted in a meaning and concept consistent with the technical matters of the present invention.

The embodiments described in this specification and the configurations shown in the drawings are preferred embodiments of the present invention, and do not represent all of the technical spirit of the present invention, so various equivalents and modifications that can replace them at the time of the present application there may be

The wearable air purifier of the present invention is implemented so that air discharged to the outside by exhalation is filtered by an exhaust filter and then discharged. And, the embodiment of the present invention is implemented to exhaust the air discharged by exhalation to the lower part of the wearable air purifier.

For this purpose, an embodiment of the wearable air purifier of the present invention may be disclosed as shown in FIG. 1 , and the embodiment of FIG. 1 includes a main frame 10 , a cover frame 20 , and a nose cup 30 .

The mainframe 10 performs a function of supporting the components as a whole.

In the upper portion of the front surface of the main frame 10, the intake port 11 is configured to form a vent hole through which external air enters for intake corresponding to the inhalation.

The intake port 11 may be formed in various ways to have a plurality of ventilation holes, and performs a function of forming a pipe through which external air is inhaled.

A duct 13 for guiding the entry of external air is configured in front of the intake port 11 , and an intake valve 11a is configured between the duct 13 and the intake port 11 . The intake valve 11a may be configured to open and close in one direction, which opens when the outside air is drawn in and closes when the inside air is exhausted.

An exhaust port 12 in which a vent hole is formed to discharge internal air in response to exhalation is configured in the lower portion of the front surface of the main frame 10 .

The exhaust port 12 may be formed in various ways to have a plurality of ventilation holes, and performs a function of forming a pipe through which the internal air is discharged.

An exhaust valve 12a is configured in front of the exhaust port 12 . The exhaust valve 12a may be configured to open and close when the inside air is discharged to the outside and close when the outside air is drawn inside.

In addition, an electric fan 14 and a battery 15 may be installed in the main frame 10 , and the battery 15 is for supplying power to the electric fan 14 .

The electric fan 14 receives power from the battery 15 and performs a function of generating an intake force for inhalation. Of course, the present invention is not limited thereto, and the electric fan 14 may be driven in various ways depending on the purpose of use, and the electric fan 14 and the battery 15 may be omitted according to the selection of the manufacturer.

In addition, a main board 16 on which a control circuit is mounted to perform a control function may be installed on the main frame 10 . Components for controlling the electric fan 14 or components for sensing atmospheric pressure and internal pressure may be mounted on the main board 16 .

In addition, a buckle 18 to which a band or string for wearing the wearable air purifier is fastened may be configured in the main frame 10 .

The buckle 18 is configured at both ends of the main frame 10, respectively, and is configured to support each of both ends of the fixing band or the fixing string.

The cover frame 20 is configured in front of the main frame 10, forms a space to receive and protect parts mounted on the front of the main frame 10, and has a structure that ensures smooth entry of external air entering during intake. has To this end, the cover frame 20 may be provided with an air inlet guide 20a for guiding the inflow of external air to be sucked in.

In addition, a main filter 22 for filtering external air introduced through the air inlet guide 20a may be configured on the front surface of the cover frame 20 .

The main filter 22 may be used by combining at least one or two or more having different filtration performance according to the purpose of use or the user's selection.

In addition, a grill 24 supporting the main filter 22 to be stably configured in the cover frame 20 is configured in front of the cover frame 20 .

The grill 24 is formed to have a plurality of ventilation structures so that external air can be stably sucked in through the main filter 22 .

In addition, the grill 24 is configured to be detachably from the cover frame 20 , and the main filter 22 configured in the front of the cover frame 20 can be easily replaced by attaching and detaching the grill 24 .

The nose cup 30 is configured at the rear of the main frame 10 . The nose cup 30 is configured to be firmly attached to the user's face when the user wears the wearable air purifier, thereby preventing air from being arbitrarily intake or exhausted by being in close contact with the user's face.

The nose cup 30 is preferably ergonomically designed and made of a material having flexibility and elasticity.

In addition, the nose cup 30 is configured to be detachably attached to the rear surface of the main frame 10 to facilitate assembly with the main frame 10 .

In addition, the nose cup 30 is formed at a position corresponding to the intake port 11 of the main frame 10 and is formed at a position corresponding to the intake hole 32 and the exhaust port 12 through which external air is inhaled, and the user's exhalation An exhaust hole 34 through which the air emitted by the is discharged is formed.

The main frame 10 , the cover frame 20 , and the nose cup 30 described as parts of the present invention may be understood as the main body of the wearable air purifier. The body of the wearable air purifier may be understood to include the above-described parts coupled to the main frame 10 , the cover frame 20 , and the nose cup 30 .

And, the embodiment of the present invention is provided with an exhaust filter housing 200, the exhaust filter housing 200 is for implementing a filtering function for the user's exhalation, the exhaust filter housing 200 has an exhaust filter 300 can be seated.

The exhaust filter 300 may be configured as one of a melt blown (MB) filter, a nano filter, or a fine mesh of a metal or resin material.

In addition, the exhaust filter 300 may be configured to be seated to be integrally coupled to the exhaust filter housing 200 or to be detachably seated. Therefore, the exhaust filter 300 and the exhaust filter housing 200 may be replaced as a set or only the exhaust filter 300 may be replaced.

The exhaust filter housing 200 and the exhaust filter 300 are configured to implement a filtering function for the user's exhalation.

And, according to the embodiment of the present invention, the exhaust filter housing 200 is configured at the lower end of the cover frame 20 , that is, the bottom surface so that the exhaled breath is discharged to the lower side of the wearable air purifier. The configuration of the exhaust filter housing 200 as described above is to propagate the air discharged by exhalation to a relatively narrow area.

The exhaust filter housing 200 and the exhaust filter 300 may be described in detail with reference to FIGS. 2 and 3 .

An exhaust module assembly hole 100 is formed in the lower portion where the main frame 10 and the cover frame 20 are coupled. The exhaust module assembly hole 100 is formed by aligning the hole of the main frame 10 and the corresponding hole of the cover frame 20 to penetrate through the mutual coupling of the main frame 10 and the cover frame 20 . can The shape of the exhaust module assembly hole 100 may be determined to correspond to the plane of the exhaust filter housing 200 to be coupled thereto.

The exhaust filter housing 200 is assembled under the main frame 10 and the cover frame 20 coupled to each other through the exhaust module assembly hole 100 described above. Hereinafter, in the description, the expression that the exhaust filter housing 200 is assembled in the exhaust module assembly hole 100 is the main frame 10 and the cover frame in which the exhaust filter housing 200 is coupled to each other through the exhaust module assembly hole 100 . (20) means to be assembled in the lower part.

The exhaust filter housing 200 is for discharging air inside the wearable air purifier. The internal air of the wearable air purifier is discharged through the exhaust port 12 of the main frame 10 by the user's exhalation, and the space between the main frame 10 and the cover frame 20 to which the main filter 22 is combined is closed. After being guided downward through the exhaust filter housing 200, it is discharged.

The space between the mutually coupled main frame 10 and the lower part of the cover frame 20 can be understood as an exhaust space for the user's exhalation, and the exhaust module assembly hole 100 is formed in the lower part of the exhaust space. can be understood That is, it can be understood that the body of the wearable air purifier has an exhaust module assembly hole 100 formed in the lower portion of the exhaust space inside, and the exhaust filter housing 200 is connected to the lower part of the body through the exhaust module assembly hole 100 . It can be understood as being assembled in

As shown in FIG. 3 , the exhaust filter housing 200 is formed to have a body 210 of a predetermined height forming a wall surrounding the inner space accommodating the exhaust filter 300 .

The body 210 has a rectangular planar area of a length and a width that can be fitted into the exhaust module assembly hole 100 and is inserted into the exhaust module assembly hole 100 to have a height at which the fitting state can be stably maintained.

In addition, the discharge hole 220 is formed inside the body 210 surrounded by, the discharge hole 220 is connected to the exhaust space between the main frame 10 and the cover frame 20, the induced air to the main Preferably, it is formed to have a predetermined height for vertically discharging toward the lower portion of the frame 10 and the cover frame 20 .

In addition, the lower portion of the inner side of the body 210 is configured to have a stepped portion 230 that protrudes to have a step. The stepped portion 230 has a discharge hole 220 in the lower portion of the inner side of the body 210 to form a step width in which the exhaust filter 300 for filtering the air discharged through the discharge hole 220 can be stably seated. ) has a structure that protrudes a certain length toward the

In addition, a plurality of partition walls 240 are configured in the discharge hole (220). The plurality of partition walls 240 may be configured to be connected to the stepped portion 230 . That is, the plurality of partition walls 240 may be configured at a lower portion in which the stepped portion 230 is formed among the inner space of the body 210 forming the discharge hole 220 , and may be formed to be spaced apart from each other by a predetermined interval to form the stepped portion 230 . The inner space of can be divided into multiple. The plurality of partition walls 240 are preferably formed so that the upper end has the same position as the stepped portion 230 .

Each partition wall 240 is vertically configured to have a predetermined height, and can support the exhaust filter 300 seated on the upper part together with the stepped portion 230 , and direct the air passing through the exhaust filter 300 toward the bottom. It can be ejected vertically. Therefore, the partition walls 240 and the stepped portion 230 may be understood as a support for the exhaust filter 300 .

The bottom surface of the exhaust filter 300 may be supported by the stepped portion 230 and the plurality of partition walls 240 . Therefore, deformation such as a part of the exhaust filter 300 being depressed by the pressure of the discharged air can be prevented.

In addition, locking keys 250 may be configured at a plurality of positions on the upper portion of the body 210 . The locking keys 250 may be configured to form a protrusion protruding a predetermined length to the outside of the body 210 .

The locking keys 250 can be press-fitted into the exhaust module assembly hole 100 when the exhaust filter housing 200 is inserted into the exhaust module assembly hole 100, and as a result, the exhaust filter housing 200 is The assembled state in the exhaust module assembly hole 100 may be supported by the interference fit of the locking keys 250 .

Meanwhile, a groove ( 251 in FIG. 5 ) to which the locking keys 250 can be coupled may be formed in the exhaust module assembly hole 100 . In this case, when the exhaust filter housing 200 is inserted into the exhaust module assembly hole 100 , the locking keys 250 may be coupled to the groove 251 of the exhaust module assembly hole 100 . As a result, the state in which the exhaust filter housing 200 is assembled in the exhaust module assembly hole 100 may be supported by the coupling of the locking keys 250 and the groove 251 .

In addition, cut-out holes 252 of a predetermined height for separation from the body 210 may be formed on both sides of the locking keys 250 to have flexibility. The locking keys 250 may have an elastic force for providing flexibility by a predetermined length separated from the body 210 by the incision hole 252 . Therefore, the exhaust filter housing 200 can be more easily coupled or separated from the exhaust module assembly hole 100 by the elastic force of the locking keys 250 .

A state in which the exhaust filter housing 200 is coupled to the exhaust module assembly hole 100 may be understood with reference to the cross-sectional view of FIG. 4 . And, the bending of the locking keys 250 by the incision hole 252 may be understood by the curved arrows of FIGS. 3 and 5 .

In addition, when the exhaust filter housing 200 is inserted into the exhaust module assembly hole 100 as shown in FIG. 4 , the edge of the exhaust filter 300 may be supported by the upper structure of the exhaust module assembly hole 100 . As a result, the exhaust filter 300 is sandwiched between the upper structure of the exhaust module assembly hole 100 and the partition walls 240 and the stepped portion 230 formed in the body 210 of the exhaust filter housing 200 to be fixed. there is.

In the state in which the exhaust filter housing 200 assembled as shown in FIG. 4 is assembled to the exhaust module assembly hole 100, the exhaust filter 300 responds to the user's exhalation of air discharged through the exhaust filter housing 200. filter

In this case, the air flow inside the wearable air purifier may be described with reference to FIG. 4 .

When the user breathes in, the air outside the wearable air purifier is supplied to the nose cup 30 through the grill 22, the main filter 24, the cover frame 20, the main frame 10, and the intake valve 11a. flows inside At this time, the exhaust valve 12a is closed when the outside air is sucked in. Therefore, the inflow of external air through the exhaust valve 12a in response to the user's inhalation is blocked.

Conversely, when the user is exhaling, the air inside the wearable air purifier, that is, the air inside the nose cup 30 is exhausted between the exhaust valve 12a, the main frame 10 and the cover frame 20 in response to the exhalation. It is discharged through the space and the exhaust filter housing 200 . At this time, the intake valve 11a is closed when the internal air is exhausted to the outside. Therefore, the internal air is blocked from being exhausted through the intake valve 11a in response to the user's exhalation.

When the internal air of the wearable air purifier is exhausted, the exhausted air is filtered by the exhaust filter 300 of the exhaust filter housing 200 .

Therefore, when the carrier wears the wearable air purifier, germs or viruses emitted from the carrier by exhalation may be filtered by the exhaust filter 300 .

Therefore, it is possible to prevent germs or viruses emitted by the exhalation of the carrier from being released to the outside of the wearable air purifier, and consequently, secondary propagation of germs or viruses can be prevented.

In addition, the wearable air purifier of the present invention is implemented to discharge air downward through the exhaust filter housing 200 as shown in FIG. 4 .

An embodiment of the wearable air purifier of the present invention may discharge air to a lower area that is relatively narrower than the front surface.

Therefore, it is possible to prevent the discharged air from proceeding toward the front of the wearable air purifier where the person talking to the carrier may be located.

By discharging the air to the lower region as described above, the embodiment of the present invention can more effectively suppress secondary propagation by exhalation of the carrier.

The wearable air purifier of the present invention having the above effects can be easily detached as shown in FIGS. 5 and 6 .

Therefore, for replacement of the exhaust filter 300 that needs to be replaced periodically, the exhaust filter housing 200 is easily inserted into the exhaust module assembly hole 100 as shown in FIG. 5 or the exhaust module assembly hole ( 100) can be easily subtracted.

The assembling of the exhaust filter housing 200 can be made more easily by bending the locking key 250 having an elastic force.

Accordingly, the wearable air purifier of the present invention has an effect of providing convenience in use.

On the other hand, the present invention may be implemented as shown in FIG. 7 so that the air discharged to the outside by exhalation is filtered by an exhaust filter and then discharged. The embodiment of FIG. 7 is also configured to exhaust air discharged by exhalation to the lower part of the wearable air purifier.

In the embodiment of FIG. 7, the exhaust space is formed by mutual coupling of the main frame 10 and the cover frame 20, and the main frame ( 10) is configured.

The cover frame 20 is configured in front of the main frame 10 and is configured to form the above-described exhaust space connected to the exhaust port 12 by mutual coupling with the main frame 10 .

And, the exhaust valve 12a is configured between the main frame 10 and the cover frame 20, and the exhaust valve 12a is configured in the exhaust port 12 to open and close the exhaust port 12 by exhalation and inhalation. .

And, the exhaust filter case 200a is configured to be detachable between the exhaust valve 12a and the exhaust port 12 . In this case, the exhaust filter case 200a may be configured to have an exhaust hole inside the body.

Then, the exhaust filter 300a is seated inside the exhaust filter case 200a.

Here, the exhaust valve 12a may be configured to pass through the exhaust filter case 200a to be coupled to the exhaust port 12 in order to open and close the exhaust port 12 . ) is preferably configured to be detachable.

The structure of the exhaust hole of the exhaust filter case 200a and the structure in which the exhaust filter 300a is seated on the exhaust filter case 200a will be understood with reference to the exhaust filter case 200 and the exhaust filter 300 of the above-described embodiment. Therefore, examples and descriptions of specific configurations will be omitted.

In addition, the exhaust filter 300a may be configured to be seated to be integrally coupled to the exhaust filter case 200a or to be detachably seated.

In the configuration of FIG. 7, when the user is exhaling, the air inside the wearable air purifier, that is, the air inside the nose cup 30 corresponds to the exhalation, and the exhaust filter 300a in the exhaust filter case 200a, the exhaust valve (12a), it is discharged through the exhaust space between the main frame 10 and the cover frame 20 and the exhaust filter housing (200).

As a result, when the internal air of the wearable air purifier is exhausted, the exhausted air is filtered by the exhaust filter 300a of the exhaust filter case 200a.

Therefore, when the carrier wears the wearable air purifier, germs or viruses emitted from the carrier by exhalation may be filtered by the exhaust filter 300a.

7 , it is possible to prevent germs or viruses emitted by the exhalation of the carrier from being released to the outside of the wearable air purifier, and as a result, secondary propagation of germs or viruses can be prevented.

In addition, the embodiment of FIG. 7 is implemented to discharge air to the lower part of the user's face as shown in FIG. 4, and secondary propagation by the exhalation of the carrier can be more effectively suppressed.

Claims (9)

The body having an exhaust module assembly hole formed in the lower portion of the exhaust space for the user's exhalation;
an exhaust filter housing configured in the main body through the exhaust module assembly hole and having an exhaust hole and a support body formed therein; and
and an exhaust filter seated inside the exhaust filter housing;
Air is exhausted through the exhaust space, the exhaust filter housing, and the exhaust filter by the exhalation,
The exhaust filter is a wearable air purifier, characterized in that it is supported when the exhaust filter housing is inserted into the main body through the exhaust module assembly hole. According to claim 1,
The main body forms the exhaust space and includes a main frame and a cover frame coupled to each other to form the exhaust module assembly hole in the lower portion of the exhaust space,
The main frame has an exhaust port connected to the exhaust hole of the nose cup in close contact with the user's face, and an exhaust valve configured in the exhaust port,
The exhaust port opened and closed by the exhaust valve is connected to the exhaust space. According to claim 1, wherein the exhaust filter housing,
the body inserted into the exhaust module assembly hole and having the exhaust hole formed therein; and
A wearable air purifier comprising a; configured at a lower portion of the interior of the discharge hole to support the exhaust filter and divide the discharge hole. According to claim 3, wherein the support,
a stepped portion protruding to have a step in the lower portion of the inner side of the body; and
A plurality of barrier ribs configured under the discharge hole in which the stepped portion is formed, connected to the stepped portion and vertically discharging the air by dividing the discharge hole;
A wearable air purifier in which the exhaust filter is seated on the stepped portion and the plurality of partition walls. According to claim 1,
Locking keys are configured at a plurality of positions on the upper portion of the body,
The locking keys are a wearable air purifier configured to form a protrusion protruding a predetermined length to the outside of the body. 2. The method of claim 1
The exhaust filter is a wearable air purifier configured to be seated integrally with the exhaust filter housing or to be detachably seated. a main frame having an exhaust port for discharging internal air by the user's exhalation;
a cover frame configured in front of the main frame and forming an exhaust space connected to the exhaust hole by mutual coupling with the main frame;
an exhaust valve configured to the exhaust port to open and close the exhaust port by the exhalation and inhalation;
an exhaust filter case detachable between the exhaust valve and the exhaust port and having an exhaust hole inside the body; and
and an exhaust filter seated inside the exhaust filter case;
Air is exhausted through the exhaust filter and the exhaust space by the exhalation,
The exhaust space is a wearable air purifier, characterized in that configured to exhaust air to the lower part of the user's face. 8. The method of claim 7,
The main frame and the cover frame are assembled to form the exhaust module assembly hole in the lower part of the exhaust space,
The wearable air purifier further comprising an exhaust filter housing detachable from the exhaust module assembly hole and capable of seating the exhaust filter therein. 8. The method of claim 7
The exhaust valve is coupled to the exhaust port through the exhaust filter case to open and close the exhaust port,
The exhaust filter case is a wearable air purifier detachable from the exhaust port.

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