WO2019235762A1

WO2019235762A1 - Nose mask

Info

Publication number: WO2019235762A1
Application number: PCT/KR2019/006124
Authority: WO
Inventors: 송호영; 송승현
Original assignee: Song Hoyoung; Song Seung Hyun
Priority date: 2018-06-05
Filing date: 2019-05-22
Publication date: 2019-12-12
Also published as: KR101926707B1

Abstract

A nose mask is disclosed. The disclosed nose mask comprises: a filter net; an external filter configured to completely surround the outside of the filter net; and an internal filter configured to be inserted into the filter net, wherein the filter net comprises a connecting member extending in one direction and a ring member including a plurality of rings which are partially coupled to the connecting member to be spaced apart from each other, have a common center, and have diameters varying along a direction from the front toward the rear, and the ring member includes an extendable ring having two semicircular free ends configured to cross each other at the time of retraction and a disconnected portion located between the free ends.

Description

Nose mask

A nose mask is disclosed. More specifically, a nose mask is disclosed that includes an elastic ring having two semi-ringed free ends configured to stagger each other upon contraction.

Masks used to prevent inhalation of foreign substances or contaminants generally use a face mask covering both the mouth and nose.

Such a facial mask has a disadvantage in that it is not aesthetically pleasing when worn, the facial mask itself is easily contaminated, fine dust and harmful chemicals are introduced into the respirator without filtration through the gap between the mask and the face, and the face mask is worn. It is disadvantageous to talk in one state.

Recently, a nasal (nasal) mask has been used as a solution to the disadvantages of such a facial mask.

As an example of such a nose mask, the following patent document in the Korean Registered Utility Model Publication No. 20-0338221 in the nose filter for filtering the dust flowing into the nose, the nose filter is a body with a through hole in the center, and A fine wire mesh filter receptor inserted into the through hole of the body and forming a space in the center, a villi cloth surrounding the filter receptor, a brush rod inserted into and fixed to the space of the filter receptor, and the filter receptor A nasal filter is described which consists of a lid in the form of a net covering both inlets.

The nasal filter configured as described above has a high dustproof effect by adopting a brush-type filter and has a high dustproof effect, and has an antibacterial effect due to the sterilizing power of silver when silver is used as the material of the filter rod and the filter receptor. In addition, when torumarin is used as the material of the body, it improves the health of the nose due to the health promoting function of the anion released from the tourmaline, and gives a cool feeling to the nose, thereby removing the feeling of foreign body insertion inside the nose. It also protects the nasal mucosa of people with rhinitis or allergies, eliminating the pain associated with cold air and pollen.

Also, because it's insert type, it doesn't have to be awkward in appearance.

In this way, the nose mask does not cover the entire mouth and nose of the wearer, and is directly inserted into the nostril of the wearer. In this case, since the mouth is open, there is no inconvenience for the wearer to speak, and there is an advantage compared to the facial mask even in the aesthetic view.

On the other hand, in the case of such a nasal mask, since the size of the inner diameter of the nostrils and the shape of each person is different, it is necessary to use a nose mask suitable for the size of the individual nostrils.

In other words, if a nose mask is used that is smaller than the size of the nostrils, air flows into the space between the inner wall of the nostrils and the nose mask, thereby preventing the effect of filtering out foreign substances.

On the other hand, when using a nose mask larger than the size of the nostrils, there is a problem that the foreign body is large and very uncomfortable to wear.

As such, in order to provide a comfortable fit to the wearer while achieving the function of the nose mask, a nose mask suitable for each wearer's body should be used.

However, the conventional nose mask is determined to be one size, and in particular, because the size of the outer diameter of the nose mask can not be adjusted, there is a problem that the fit and effect is inferior to fit to the size of the various nostrils of the wearers.

In addition, the conventional nose mask has a problem that can not be elastically closely contact the nose mask of the wearer to create a gap, resulting in the ultra-fine dust and harmful chemicals that occur frequently as a result of recent social problems There was a problem that could not be easily filtered.

[Preceding technical literature]

[Patent Documents]

(Patent Document 1) Patent Document: Registration Utility Model Publication No. 20-0338221 (Registration Date: December 30, 2003)

One embodiment of the present invention provides a nose mask comprising an elastic ring having two semi-ringed free ends configured to stagger each other upon contraction.

One aspect of the invention,

Filter net;

An outer filter configured to completely surround the outside of the filter network; And

An internal filter configured to be inserted into the filter network;

The filter network includes a connecting member extending in one direction and a ring member composed of a plurality of rings partially coupled to the connecting member to be spaced apart from each other and having a common center and varying in diameter from front to rear,

The ring member provides a nose mask comprising an elastic ring having two semi-cyclic free ends configured to cross each other upon retraction and a break positioned between them.

The ring member may further include a fixing ring disposed at one end of the connecting member positioned behind the elastic ring, and the coupling angle between the fixing ring and the connecting member may form an obtuse angle.

A coupling angle between the expansion ring and the connection member may be smaller than a coupling angle between the fixing ring and the connection member corresponding thereto.

The expansion ring may be plural, and the plurality of expansion rings may be configured such that the positions of the respective cut portions are staggered from each other when viewed in a direction facing the common center of the rings.

The expansion rings are three, and the three expansion rings may be configured such that the positions of the respective cut portions are offset by 45 ° from each other when viewed in a direction facing the common center of the rings.

The two semi-cyclic free ends of the elastic ring may be configured to be equal in radius to each other but to be shifted so that both ends thereof do not contact each other when contracted.

The two semi-cyclic free ends of the elastic ring may be configured such that both ends thereof are not contacted with each other when they are contracted with each other so as to have a different radius.

The external filter may be a nonwoven filter or a hepa filter having a static electricity.

The external filter may include a plurality of micropores.

The inner filter may include a front filter made of a fiber aggregate adsorbed with activated carbon and inserted into the front of the filter net, and a rear filter made of a fiber aggregate adsorbed with zeolite and inserted into the rear of the filter net.

The inner filter may be composed of one fiber aggregate single filter in which activated carbon and zeolite are mixed and adsorbed, or one fiber aggregate single filter in which any one of activated carbon and zeolite is adsorbed.

Two nose masks may be used in pairs as left and right separation types.

Nose mask according to an embodiment of the present invention is a good fit by adjusting the outer width naturally according to the size of the nostril of the wearer, because it is elastically tightly adhered to the inner wall of the nostrils to create a gap between the nostrils. Because it can prevent, and includes a filter having a variety of functions, there is an effect that can easily filter out the ultra-fine dust and harmful chemicals that are frequently occurring and emerging as a social problem.

1 is a perspective view of a nose mask according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the nose mask of FIG. 1.

FIG. 3 is an exploded perspective view of the nose mask of FIG. 1, illustrating a filter net and an internal filter disposed in the nose mask.

4 is a perspective view showing an extract of the filter net in the drawing of FIG.

FIG. 5 is a side view illustrating a modified example of the filter net provided in the nose mask of FIG. 1.

FIG. 6 is a side view illustrating another modified example of the filter net provided in the nose mask of FIG. 1.

FIG. 7 is a front view of the filter network of FIG. 4.

FIG. 8 is a cross-sectional view taken along the line AA of FIG. 2.

FIG. 9 is a cross-sectional view taken along the line BB of FIG. 2.

FIG. 10 is a cross-sectional view taken along the line CC of FIG. 2.

FIG. 11 is a perspective view illustrating a modified example of the internal filter provided in the nose mask of FIG. 1.

Hereinafter, with reference to the drawings will be described in detail the nose mask according to an embodiment of the present invention.

As used herein, the term "front" and "rear" refers to a portion of the nose mask that is located at the entrance (front) of the nostril and the inside (rear) of the nostril when the nose mask is inserted into the nostril. Indicates relative position.

Also in this specification, "free end" means a member end that is not supported or restrained.

In addition, in this specification, “disconnection portion” means a portion where the connection between two semi-cyclic free ends is broken.

In addition, in this specification, "stretchable ring" refers to a ring that is stretched or shrunk to increase or decrease diameter.

In addition, in this specification, "fixed ring" means a ring that does not change in diameter due to lack of elasticity.

In addition, in the present specification, "left and right separate nose mask" means that the nose mask inserted into the left nostril and the nose mask inserted into the right nostril have the same configuration, and they are not connected to each other and are completely separated.

Hereinafter, the technical configuration of the present invention according to the accompanying drawings in detail.

2, the nose mask 10 according to an embodiment of the present invention includes a filter net 100, an external filter 200, and an internal filter 300.

The nose mask 10 is inserted into each of the two nostrils of the wearer individually to prevent inhalation of foreign matter or contaminants.

The nose mask 10 may also be inserted into the left nostril and may also be inserted into the right nostril. That is, two nose masks 10 can be used in pairs as left and right separation types.

On the other hand, all conventional nasal masks are connecting members that allow the left nose mask inserted into the left nostril and the right nose mask inserted into the right nostril to support each other by biting the inside of both nostrils or simply connect them. Have a connected configuration. The reason why all conventional nose masks have such a configuration is that they are not fixed in the nostrils and fall off when inserted into each nostril without a connecting member due to lack of elasticity and adhesion. In addition, all conventional nasal masks having the above-described configuration are inconvenient to wear or cause pain to the wearer, and the inner portions of the left and right nose masks are in close contact with both nostrils, but the outer parts are not closely contacted with the nostrils and there is a gap. As a result, the blocking effect of impurities such as fine dust and harmful gases is reduced.

The filter net 100 may be made of synthetic resin having silicone or elasticity such that the outer filter 200 may be elastically adhered to the inner wall of the nostril.

The filter net 100 includes a connection member 110 and a ring member 120. The connecting member 110 and the ring member 120 constituting the filter net 100 may be integrally formed with each other.

The connection member 110 extends in one direction. One or a maximum of two connection members 110 may be used. When more than two connection members 110 are used (that is, three or more), the elasticity of the

elastic rings

122, 123, and 124 may be reduced to reduce adhesion to the nostrils or to be inserted into the nostrils. Can interfere.

Although not shown in the drawing, when two connecting members 110 are used, they may be arranged side by side adjacent to each other, and the plurality of

rings

121, 122, 123, and 124 constituting the ring member 120 may have two such members. It may be partially coupled to all four connecting members 110.

The ring member 120 may be composed of a plurality of

rings

121, 122, 123, and 124 partially coupled to the connection member 100 to be spaced apart from each other and having a common center but varying in diameter from front to rear. For example, a plurality of rings may have smaller diameters sequentially from front to back, larger diameters sequentially, smaller diameters sequentially and larger again, larger diameters then smaller, or different It can be configured to have a diameter size distribution.

In addition, the ring member 120 may include

elastic rings

122, 123, and 124 having two semi-cyclic free ends configured to be staggered with each other upon contraction and

breaks

122a, 123a, and 124a positioned therebetween. have. Here, there may be only one expansion ring or a plurality of expansion rings.

The

elastic rings

122, 123, and 124 have two semi-circular free ends, which greatly improve their elasticity, so that even when inserted into various nostrils of different sizes, they contract or expand to fit the nostrils and always have an inner wall of the nostril. It can be in close contact.

As an example, if the

elastic rings

122, 123, and 124 are replaced with a full ring, the nose mask containing the same loses its elasticity and adheres only to a nostril of a specific size, which is larger than the replaced ring. The nostrils may not be in close contact with the nostrils, causing a gap between the nostril's inner wall, or the nose mask itself may be removed from the nostril, and the nose mask may not be inserted into the nostril smaller than the replaced ring.

As another example, if another member is inserted between the two semi-cyclic free ends to elastically connect the members, the

elastic rings

122, 123, and 124 may be stretched to reduce the

elastic rings

122, 123, The problem of replacing 124 with a complete ring and, although weak, is a similar problem.

The external filter 200 is configured to completely surround the outside of the filter network 100.

The internal filter 300 is configured to be inserted into the filter network 100.

3 and 4, the ring member 120 of the filter net 100 is the first fixed ring 121, which is disposed in the rear, sequentially disposed in front of the fixed ring 121, the first, It consists of first, second and third

elastic rings

122, 123, 124 having two, three

cutouts

122a, 123a, 124a, and the connecting member 110 is fixed ring 121 and It may be connected to the lower portion between the first, second, third

elastic ring

122, 123, 124, respectively. At this time, in the embodiment of the present invention, as described above, the ring member 120 has been described as consisting of three first, second, and third

elastic rings

122, 123, 124, another embodiment of the present invention According to the ring member 120 it is noted that it may be made of two or three or more expansion rings.

The fixing ring 121 and the first, second and third

elastic rings

122, 123 and 124 of the ring member 120 form a filter net 100 whose diameter changes from the front to the rear, and the fixed ring. The 121 is formed in a circular shape so as to maintain a circular shape without cutouts, and the first, second, and third

elastic rings

122, 123, and 124 are shifted from each other to impart elasticity when the nose mask is inserted into the nostril. The first, second, and

third cutouts

122a, 123a, and 124a are respectively provided.

The connection member 110 serves to connect the lower portion between the fixing ring 121 and the first, second, and third

elastic rings

122, 123, and 124, respectively.

5 and 6, the coupling angle θ ₁ between the fixing ring 121 and the connecting member 110 may form an obtuse angle.

5 and 6, the coupling angle θ ₂ between the expansion and contraction ring 124 and the connection member 110 corresponds to the coupling angle θ between the fixing ring 121 and the connection member 110. May be less than ₁ ). For bond angle (θ ₂₎ between the example, the stationary ring 121 and the connection member 110 is coupled between each of (θ ₁₎ elastic ring 124 and the connecting member 110 corresponding to may be an acute angle . That is, the third elastic ring 124 may be formed to be inclined so that the upper portion protrudes forward from the lower portion. For example, the third elastic ring 124 may be formed to be inclined at an inclination of about 10 ° to 20 ° so that the upper part protrudes forward from the lower part. That is, the coupling angle θ ₂ may be 10 ° to 20 °. Therefore, when the nose mask 10 is inserted into the nostril, the third elastic ring 124 is inclined side by side with the end line of the nostril so that the nose mask 10 is completely inserted into the nostril so that the nose mask 10 is worn when viewed from the outside. This can make it difficult to identify. In other words, since the third elastic ring 124 is formed to be inclined at an inclination in which the upper part protrudes forward than the lower part so as to correspond to the front shape of the nostril, the front part of the nose mask 10 is secured to the front part of the nostril. It can be in close contact with each other, and the nose mask 10 inserted into the nostril can be prevented from being exposed to the outside as much as possible.

Referring to FIG. 7, the plurality of expansion rings 122, 123, and 124 are configured such that the positions of the

respective breaks

122a, 123a, and 124a are staggered when observing the common center of the rings in a frontal view. Can be. For example, the three

retractable rings

122, 123, and 124 are positioned so that the positions of the

breaks

122a, 123a, and 124a are staggered by 45 ° from each other when viewed from the front facing the common center of these rings. Can be configured. That is, the first cutout portion 122a is formed on the upper portion of the first elastic ring 122, and the second cutout portion 123a is formed between the upper portion of the second elastic ring 123 and the central portion of the first elastic ring 122. The cutoff portion 124a may be formed at one central portion of the third elastic ring 124. If the ring member 120 includes only one elastic ring 124 having a break 124a, a person having a large nostril wears such a nose mask 10 to the break 124a. In the corresponding part, the nose mask is excited without contact with the nostrils, and the nose mask 10 cannot fully exhibit its original function. Therefore, the ring member 120 is provided with at least two expansion rings having a cutoff portion, and each cutoff portion is preferably configured to be staggered with each other when viewed in a direction facing the common center of the expansion rings.

8 to 10, since the first cutout 122a is formed on the upper portion of the first elastic ring 122, the external filter 200 is completely circular in the first cutout 122a as shown in FIG. 8. This is because it maintains the crushed circular shape, and the second cutting portion 123a is formed between the upper portion and the central portion of the second elastic ring 123, the external filter 200 in the second cutting portion 123a as shown in FIG. Maintains a crushed circular shape rather than a complete circular shape, and the third cutout portion 124a is formed at one side central portion of the third elastic ring 124, so that the external filter 200 is formed at the third cutout portion 124a as shown in FIG. Maintains a crushed circle rather than a complete circle. At this time, the first, second and

third cutouts

122a, 123a, and 124a maintain the crushed circular shape of the external filter 200, respectively, so that a gap is generated between the nostrils. Since the positions of the

cutout portions

122a, 123a, and 124a are offset so as to deviate from each other as in FIG. Compensated by 124a, the outer filter 200 is maintained in a circular shape when viewed from the front of the nose mask 10 so that the gap can be blocked so that a gap with the nostrils does not occur. That is, the gap generated in the first cutout 122a is compensated by the second and third

elastic rings

123 and 124 to block the gap, and the gap generated in the second cutout 123a is the first and third. Since the gaps are compensated by the

elastic rings

122 and 124 to block the gaps, and the gaps generated by the third cutouts 124a are compensated by the first and second

elastic rings

122 and 123 to block the gaps. As a result, a gap may be prevented between the external filter 200 and the nostrils.

Referring to FIG. 5, the two semi-cyclic free ends provided in each of the

elastic rings

122, 123, and 124 may be configured to have the same radius but displace each other so that both ends thereof do not contact each other when contracted. In FIG. 5, the two semi-cyclic free ends provided in the third elastic ring 124 are shifted from each other by a predetermined angle θ ₃ , but each of the first and second

elastic rings

122 and 123 is different. The two semi-cyclic free ends provided in the second ring may also be shifted by the same angle θ ₃ as the two semi-cyclic free ends of the third elastic ring 124. For example, both ends of the first, second and third expansion rings 122, 123 and 124 are both ends when the first, second and third expansion rings 122, 123 and 124 contract and contract. The parts may be configured to be shifted by 10 ° to 20 ° so that they do not collide with each other. That is, the angle θ ₃ may be 10 ° to 20 °.

Referring to FIG. 6, two semi-circular free ends provided in each of the

elastic rings

122, 123, and 124 may be configured such that both ends thereof do not contact each other when contracted due to different radii. Here, the angle corresponding to the angle θ ₃ shown in FIG. 5 may be 0 °. As such, when the two semi-cyclic free ends provided in each of the

elastic rings

122, 123, and 124 have different radii, the free ends having the small radius enter the lower end of the free radius when contracted. These can run away from each other without hitting each other.

5 and 6, as described above, since both ends of the first, second, and third

elastic rings

122, 123, and 124 are formed to be shifted so as not to contact each other during contraction, the first, second, and third When the

elastic rings

122, 123, and 124 are contracted by contracting, both ends may collide with each other to prevent contraction.

The external filter 200 is installed to surround the outside of the filter network 100 as a whole, and the external filter 200 serves to primarily filter out fine dust and harmful substances.

In addition, the external filter 200 may be a nonwoven filter or a hepa filter having a static electricity. In this case, the external filter 200 may be a nonwoven filter or a hepa filter having a large amount of fluff (hair) structure having electrostatic properties, and the external filter 200 may be an ultramicro filter, an electrostatic induction filter, or a multi filter. It may be a filter having dust adsorption functionality.

In addition, a plurality of micropores 210 may be formed in the external filter 200. In this case, since the plurality of micropores 210 are formed in the external filter 200, the wearer may comfortably breathe through the micropores 210 while the nose mask is inserted into the nostril. On the other hand, because there is a lot of fluff around the micropores 210, the air passes through, but the dust is filtered while caught by the electrostatic fluff.

The internal filter 300 is installed to be embedded in the filter network 100, and the internal filter 300 performs secondary filtering of harmful chemicals and ultrafine dust.

2 and 3, the inner filter 300 is composed of a fiber aggregate on which activated carbon is adsorbed, and is composed of a front filter 310 embedded in the front of the filter net 100 and a fiber aggregate on which zeolite is adsorbed. It may be composed of a rear filter 320 embedded in the rear of the (100). At this time, the activated carbon and zeolite having the electrical properties and serve to absorb and filter harmful chemicals, fine dust and ultrafine dust in the air. On the other hand, as described above, the inner filter 300 is preferably composed of two fiber assemblies by separating the front filter 310 and the rear filter 320, the inner filter 300 is activated carbon and zeolite, if necessary It is to be noted that any one may be composed of one fiber aggregate adsorbed.

That is, referring to FIG. 11, the internal filter 300 may include one fiber aggregate single filter in which activated carbon and zeolite are mixed and adsorbed, or one fiber aggregate single filter in which any one of activated carbon and zeolite is adsorbed.

Referring to the overall operating relationship of the present invention configured as described above in detail.

First, while holding the outer filter 200 of the nose mask while pressing the outer filter 200 or while pressing and rotating the outer filter 200, the nose mask 10 is pushed into the nostril of the wearer. At this time, in general, the size of the inner diameter of the nostril of a person varies from person to person, and the size of the inner diameter decreases as it enters inward.

When the wearer grabs the outer filter 200 and pushes the nose mask 10 to a proper position in his nostril, the first, second and third

elastic rings

122, 123 and 124 of the filter net 100 By the action of two semi-cyclic free ends provided in each of the first, second, and third cut-out portion (122a) (123a, 124a) in the vicinity of the elastic contraction is retracted. At this time, when the nose filter 10 is moved to the outside of the nostril by pulling the external filter 200, the first, second, and third

elastic rings

122, 123, and 124 of the filter net 100 are respectively By the action of the two semi-cyclic free ends provided in the first, second, and third cutout (122a) (123a, 124a) is to be elastically restored near the opening.

When the nose mask 10 is pushed into the nostril of the wearer as described above, the outer diameters of the first, second and third

elastic rings

122, 123 and 124 of the filter net 100 are adjusted to the size of the inner diameter of the nostril of the wearer. Since the size of is naturally changed, the outer filter 200 of the nose mask 10 is always connected to the inner wall of the nostril by the first, second and third

elastic rings

122, 123 and 124 of the filter net 100. It will be in close contact. At this time, the wearer pushes two nose masks 10 having the same configuration into both nostrils one by one.

When the wearer breathes while wearing two nose masks 10 on both sides of the nostrils, fine dust and harmful substances contained in the air are first filtered by the external filter 200, and also harmful. Since chemicals and ultra-fine dusts are secondaryly filtered by the front filter 310 and the rear filter 320 of the inner filter 300, the wearer can protect the respirator even in weather with yellow dust or fine dust. In addition, it can work safely in the workplace with fine dust or harmful gas.

Therefore, the nose mask 10 according to the embodiment of the present invention is formed by the action of two semi-cyclic free ends provided with each of the first, second, and third

elastic rings

122, 123, and 124. Since the elasticity is elastically given to the filter net 100 in the vicinity of the 1,2,3

cutouts

122a, 123a, and 124a, the outer diameter of the nose mask 10 is naturally sized according to the size of the wearer's nostril. There is an advantage that can be further improved by adjusting the fit.

In addition, the nose mask 10 according to an embodiment of the present invention is the outer filter 200 by the first, second, third

elastic ring

122, 123, 124 of the filter net 100 of the nostrils. Since it is elastically in close contact with the inner wall, there is an advantage that can prevent the gap between the outer filter 200 and the inner wall of the nostrils.

In addition, the nose mask 10 according to an embodiment of the present invention, the front filter 310 adsorbed with activated carbon and the rear filter 320 adsorbed with zeolite, or the activated carbon and zeolite are mixed in the filter network 100. Since the internal filter 300 composed of one fiber aggregate single filter adsorbed or one fiber aggregate single filter adsorbed one of activated carbon and zeolite is embedded, ultra-fine dust which has recently occurred frequently and caused by social problems There is an advantage that can easily filter out harmful chemicals.

Although the present invention has been described with reference to the drawings, this is merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

Claims

Filter net;

An outer filter configured to completely surround the outside of the filter network; And

An internal filter configured to be inserted into the filter network;

The filter network includes a connecting member extending in one direction and a ring member composed of a plurality of rings partially coupled to the connecting member to be spaced apart from each other and having a common center and varying in diameter from front to rear,

And the ring member comprises an elastic ring having two semi-ringed free ends configured to be staggered with each other upon retraction and a break positioned between them.
The method of claim 1,

The ring member further includes a fixing ring disposed at one end of the connecting member located behind the elastic ring, the coupling angle between the fixing ring and the connecting member is an obtuse angle.
The method of claim 2,

Coupling angle between the expansion ring and the connection member is smaller than the corresponding coupling angle between the fixing ring and the connection member nose mask.
The method of claim 1,

And the plurality of expansion rings are configured such that the plurality of expansion rings are staggered from each other when they are viewed in a direction in front of the common center of the rings.
The method of claim 4, wherein

Wherein said expansion rings are three, and said three expansion rings are configured such that the positions of the respective cut portions are staggered by 45 ° from each other when viewed in a direction facing the common center of these rings.
The method of claim 1,

And the two semi-cyclic free ends of the elastic ring are equal in radius to each other and configured to be shifted so that both ends thereof do not contact each other when contracted.
The method of claim 1,

And the two semi-cyclic free ends of the elastic ring are different in radius from each other so that both ends of the elastic ring are staggered without being contacted with each other when contracted.
The method of claim 1,

The outer filter is a nose mask is a non-woven filter or hepa filter with a static electricity.
The method of claim 1,

The outer filter is a nose mask including a plurality of micropores.
The method of claim 1,

The inner filter comprises a front filter made of a fiber aggregate adsorbed activated carbon and inserted into the front of the filter network, and a rear filter made of a fiber aggregate adsorbed zeolite and inserted into the rear of the filter network.
The method of claim 1,

The inner filter is a nose mask composed of one fiber aggregate single filter in which activated carbon and zeolite are mixed and adsorbed, or one fiber aggregate single filter in which any one of activated carbon and zeolite is adsorbed.
The method of claim 1,

The nose mask is a left and right separation nose mask used in pairs.