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WO2020076001A1 - Casquette pourvue d'une unité de purification d'air - Google Patents

Casquette pourvue d'une unité de purification d'air Download PDF

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Publication number
WO2020076001A1
WO2020076001A1 PCT/KR2019/012793 KR2019012793W WO2020076001A1 WO 2020076001 A1 WO2020076001 A1 WO 2020076001A1 KR 2019012793 W KR2019012793 W KR 2019012793W WO 2020076001 A1 WO2020076001 A1 WO 2020076001A1
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WO
WIPO (PCT)
Prior art keywords
wind speed
fan member
unit
wind
frame
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2019/012793
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English (en)
Korean (ko)
Inventor
구본경
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO2020076001A1 publication Critical patent/WO2020076001A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B1/00—Hats; Caps; Hoods
    • A42B1/008—Hats; Caps; Hoods with means for heating or cooling
    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B1/00—Hats; Caps; Hoods
    • A42B1/18—Coverings for protecting hats, caps or hoods against dust, rain, or sunshine
    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B1/00—Hats; Caps; Hoods
    • A42B1/24—Hats; Caps; Hoods with means for attaching articles thereto, e.g. memorandum tablets or mirrors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0002—Casings; Housings; Frame constructions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/42—Auxiliary equipment or operation thereof
    • B01D46/44—Auxiliary equipment or operation thereof controlling filtration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering

Definitions

  • the present invention relates to a hat equipped with an air purifying unit.
  • an air purifying unit that blows downward to the visor of the hat
  • an air purifying unit that allows breathing with purified air without wearing a separate accessory such as a mask to purify the air required for breathing It relates to the hat provided.
  • hats are classified as being used for decoration at the same time as protecting the wearer's head from cold or heat, or being used for safety in workplaces.
  • hats are classified into a cap shape and a hat shape, and the cap shape is mainly composed of a relatively narrow width visor formed on the front side, and the hat shape is mainly a relatively wide width visor around the entire circumference. It is composed of a formed shape and can be used to cover light or the like.
  • the mask worn according to the environment in which the air is contaminated or the working environment has a disadvantage in that it is difficult to secure a field of view due to the worn mask, and various inconveniences such as water vapor are generated due to the mask worn during the breathing process. .
  • Patent Publication No. 10-2018-0036377 discloses an air purifying device for a hat with a brim.
  • FIG. 1 is a view showing a conventional air purifier for hats equipped with a visor.
  • the air is purged after purifying air containing contaminants by a forced circulation method by facing the wearer's respiratory tract on the visor of the hat. It is characterized by making it.
  • the air purifying device for a hat equipped with the conventional visor is provided with air provided to purify the contaminants contained in the air in the visor of the hat and then blow it toward the respiratory system of the wearer wearing the hat.
  • the air purifying device is provided with a mounting hole (1) provided on a visor, a blowing fan module (2) mounted on the mounting hole (1) to inhale and blow air to the respiratory side of a wearer wearing a hat, It includes a purification filter (3) that is detachably provided on one surface of the blowing fan module (2) to purify contaminants contained in the air, and a battery (4) that supplies electrical energy to the blowing fan module (2).
  • Prior art documents in the technical field to which the present invention pertains include Korean Patent Publication No. 10-2018-0036377, Korean Registered Patent Publication No. 10-0841259, and Korean Registered Patent Publication No. 10-1463638.
  • the present invention has been devised to solve the above problems, and the problem to be solved in the present invention is by providing an air purifying unit for blowing in a downward direction to the visor of the cap, so as to separate the air required for breathing, such as a mask.
  • the purpose of the present invention is to provide a hat equipped with an air purifying unit that allows breathing with purified air without wearing accessories.
  • the first fan member and the second fan member are configured to blow purified air in a direction intersecting each other, so that even if the wind blows, the path of the air purified by the wind is easy. It is to provide a hat equipped with an air purifying unit that does not change.
  • Another problem to be solved in the present invention is configured to control the wind speed ratio of the first fan member and the second fan member configured to blow purified air according to the wind speed and the wind direction of the wind measured by the sensor unit. It is to provide a cap equipped with an air purifying unit that allows the purified air to cross and overlap the user's nose and mouth.
  • a hat provided with an air purifying unit according to an embodiment of the present invention for solving the above problems is formed in a cap shape (Cap) body portion is formed inside the receiving portion;
  • a visor having a first coupling groove and a second coupling groove formed protrudingly in one direction from a lower portion of the main body portion;
  • An air purifying unit coupled to the first coupling groove and the second coupling groove to blow air in a downward direction;
  • a sensor unit coupled to the outer surface of the body unit; And it characterized in that it comprises a control unit for driving the air purifying unit according to the information measured by the sensor unit.
  • the air purification unit a first frame coupled to the first coupling groove; A second frame coupled to the second coupling groove; A first fan member coupled to the first frame and controlled by the control unit; A second fan member controlled by the control unit coupled to the second frame; A first filter member coupled to the first frame to filter wind blown by the first fan member; And a second filter member coupled to the second frame to filter wind blown by the second fan member.
  • first frame and the second frame are respectively coupled with a slope to the first coupling groove and the second coupling groove so that the wind blown from the first fan member and the second fan member intersects each other. Is done.
  • control unit the first frame and the second frame, the power supply unit is provided adjacent to the position;
  • a variable controller provided at a position adjacent to the power supply and controlling the wind speeds of the first fan member and the second fan member according to the wind speed measured by the sensor unit.
  • the sensor unit is composed of a wind direction wind speed sensor is provided on the outer top of the main body characterized in that it measures the wind direction information and wind speed information.
  • the sensor unit is composed of a first wind speed sensor and a second wind speed sensor, which are provided on one side and the other side of the main body, respectively, and are provided at positions symmetrical to each other based on the center of the main body, thereby providing a plurality of sensors at each position. It is characterized by measuring the wind speed information.
  • control unit is characterized in that to drive the first fan member and the second fan member to the same intensity or different intensity by controlling the variable controller according to the wind direction information and wind speed information.
  • control unit may generate a center line of the main body part by overlapping regions of wind blown from the first fan member and the second fan member and crossing each other. It characterized in that to control the wind speed ratio of the first fan member and the second fan member so as not to escape.
  • the air purifying unit blowing in a downward direction to the visor of the cap is provided, so that a separate accessory such as a mask is not required to purify the air required for breathing. It has the effect of allowing you to breathe with purified air.
  • the first fan member and the second fan member are respectively configured to blow purified air in a direction intersecting each other, so that even if the wind blows, the path of the air purified by the wind is not easily changed. It works.
  • the purified air is configured to control the wind speed ratio of the first fan member and the second fan member configured to blow the purified air. It has the effect of crossing and overlapping in the nose and mouth of.
  • FIG. 1 is a view showing a conventional air purifier for hats equipped with a visor.
  • FIGS. 2 and 3 are views showing a hat equipped with an air purifying unit according to the present invention.
  • Figure 4 is a view showing the air purifying portion of the hat provided with an air purifying portion according to the present invention.
  • FIG. 5 is a view showing a control unit of a hat equipped with an air purifying unit according to the present invention.
  • FIG. 6 is a view showing a sensor unit according to an embodiment of a hat provided with an air purifying unit according to the present invention.
  • FIG. 7 and 8 are views showing a sensor unit according to another embodiment of the cap provided with an air purifying unit according to the present invention.
  • FIG. 9 to 11 are views showing an embodiment of a hat equipped with an air purifying unit according to the present invention.
  • the present invention is provided with an air purifying unit that blows downward to the visor of the cap, thereby providing an air purifying unit that allows breathing with purified air without wearing a separate accessory such as a mask to purify the air required for breathing. It's about hats.
  • FIG. 2 and 3 is a view showing a hat equipped with an air purifying unit according to the present invention
  • FIG. 4 is a view showing an air purifying unit of a hat equipped with an air purifying unit according to the present invention
  • FIG. 5 is air according to the present invention It is a diagram showing the control unit of the hat provided with the purification unit.
  • the cap provided with the air purifying part of the present invention includes a main body part 100, a visor part 200, an air purifying part 300, a sensor part 400, and a control part 500. It is composed.
  • the hat provided with the air purifying part of the present invention is configured to control the air purifying part 300 by the control part 500 according to the measured value measured by the sensor part 400, and the air purifying part 300 is It is configured to blow the purified air so that the contaminated air is pushed out by the purified air, so that a user wearing a hat equipped with the air purification unit of the present invention breathes with the purified air blown by the air purification unit 300 It can be configured to.
  • the main body portion 100 is formed in a shape of a cap, thereby forming a receiving portion capable of accommodating the user's head inside, so that the main body portion 100 is formed in a shape surrounding the user's head, and the visor portion 200 is formed to protrude in one direction from the lower portion of the main body portion 100 to protect the user's eyes from being dazzled or face burned by sunlight or the like falling into the user's eyes, the first coupling groove in the center 210 and the second coupling groove 220 is formed.
  • a first fan member 330 and a second fan member 340 of the air purification unit 300 may be coupled to the first coupling groove 210 and the second coupling groove 220, and the first The control unit 500 may be provided between the fan member 330 and the second fan member 340, that is, between the first coupling groove 210 and the second coupling groove 220.
  • the air purification unit 300 is coupled to the first coupling groove 210 and the second coupling groove 220 and blows in a downward direction, thereby preventing a user from breathing with contaminated air and breathing with purified air To make it possible.
  • the air purification unit 300 includes a first frame 310 coupled to the first coupling groove 210, a second frame 320 coupled to the second coupling groove 220, and the first frame ( 310, the first fan member 330 controlled by the control unit 500, the second fan member 340 controlled by the control unit 500 coupled to the second frame 320, the The first filter member 350 is coupled to the first frame 310 to filter the wind blown by the first fan member 330 and the second fan member 340 is coupled to the second frame 320 It may include a second filter member 360 to filter the wind blown by.
  • the first frame 310 is coupled to the first coupling groove 210, is coupled so that no space is generated between the first frame 310 and the first coupling groove 210
  • the The second frame 320 is coupled to the second coupling groove 220, and is configured to be coupled so that no space is generated between the second frame 320 and the second coupling groove 220, so that the second The air blown by the first fan member 330 and the second fan member 340 may be made of air that has passed through the first filter member 350 and the second filter member 360.
  • the first frame 310 and the second frame 320 may be configured to have the same configuration, and are configured to be coupled to the first coupling groove 210 and the second coupling groove 220 with a slope. Therefore, the paths of the wind blown from the first fan member 330 and the second fan member 340 may be configured to overlap each other.
  • the first frame 310 and the second frame 320 has an angle of inclination with respect to the first coupling groove 210 and the second coupling groove 220, the first frame 310 and the The purified air of the first fan member 330 and the second fan member 340, which are respectively coupled to the two frames 320, are adjacent to each other in and around the nose and mouth of the user wearing the cap provided with the air purifying unit of the present invention. It can be configured at an angle that allows crossing.
  • the first fan member 330 and the second fan member 340 may have the same configuration as each other, and may be formed in the shape of a general fan, but the wind blown does not spread to the surroundings, respectively, and the first fan member
  • the fan member 330 and the second fan member 340 may be formed in a shape that can be concentrated and moved in the direction viewed.
  • the shape of the first frame 310 and the second frame 320 is formed in a shape surrounding the outside of the first fan member 330 and the second fan member 340, depending on the working environment. It can also be made by.
  • the first filter member 350 and the second filter member 360 may have the same configuration, and each of the first filter member 350 and the second filter member 360 may be prefiltered.
  • Deodorization filter (Deodorization filter) and Hepa Filter (Hepa Filter) can be composed of any one or a combination of a plurality of structures.
  • the air purified by any one or a plurality of filters is passed through the fragrance to include the fragrance compound.
  • the sensor unit 400 is coupled to the outer surface of the main body 100 to measure the wind direction information and wind speed information generated from the outside, the measured wind direction information and wind speed information is a control unit 500 to be described later It can be processed by and used when controlling the first fan member 330 and the second fan member 340.
  • the method in which the sensor unit 400 measures the wind direction information and the wind speed information is that the sensor unit 400 is composed of a single wind direction wind speed sensor to simultaneously measure the wind direction information and the wind speed information, or a pair of wind speeds. It can be configured to calculate wind direction information through a plurality of wind speed information as it is composed of sensors and is calculated by the following equation, and detailed description will be described later.
  • the control unit 500 is to drive the air purifying unit 300 according to the information measured by the sensor unit 400, and is provided in a position adjacent to the first frame 310 and the second frame 320
  • the first fan member 330 and the second fan member 340 are provided at positions adjacent to the power supply unit 510 and the power supply unit 510 according to wind direction information and wind speed information measured by the sensor unit 400. It may include a variable controller 520 for controlling the wind speed of the.
  • FIG. 6 is a view showing a sensor unit according to an embodiment of a hat provided with an air purifying unit according to the present invention.
  • the sensor unit 400 of the hat provided with the air purifying unit is composed of the wind direction wind speed sensor 410 and is provided outside the main body 100 to provide wind direction information. And wind speed information.
  • the obstacle may be installed at the smallest position, and preferably It may be installed on the outer top of the body portion 100.
  • the wind direction wind speed sensor 410 may be composed of a wind direction wind speed sensor using ultrasonic waves.
  • the wind direction wind speed sensor using ultrasonic waves when the direction of the ultrasonic wave is the same as the direction of the wind, the speed of the ultrasonic wave increases, and the direction of the ultrasonic wave winds. If it is different from the direction of, it uses the principle of slowing down the speed of ultrasonic waves, and can be used by adjusting the wind speed unit, output frequency, and output format according to the environment.
  • the sensor part 400 may be configured to be formed in a shape that is partially inserted into the body part 100 so that the sensor part 400 is not separated from the body part 100.
  • FIG. 7 and 8 are views showing a sensor unit according to another embodiment of a cap provided with an air purifying unit according to the present invention.
  • the sensor unit 400 of the hat provided with the air purifying unit includes a first wind speed sensor 420 and a second wind speed sensor 430. Each may be provided on one side and the other side of the main body 100 to be configured to measure wind speed information at each location.
  • the first wind speed sensor 420 and the second wind speed sensor 430 may include the main body part ( 100) is installed on one side and the other side of the outside, it can be installed in a position that is symmetrical with respect to the center of the main body portion 100, the control unit 500 is the first wind speed sensor 420 It may be configured to calculate wind direction information using the measured wind speed information and the wind speed information measured by the second wind speed sensor 430.
  • control unit 500 the wind speed information measured by the first wind speed sensor 420 and the wind speed information measured by the second wind speed sensor 430 to the [Equation 1] and [Equation 2] Substitute the wind direction information, and may be configured to control the first fan member 330 and the second fan member 340 according to the measured wind speed information and the calculated wind direction information.
  • M L is the wind speed information measured by the first wind speed sensor 420
  • M R is the wind speed information measured by the second wind speed sensor 430
  • ⁇ is the wind speed
  • ⁇ 1 is the wind speed 200
  • ⁇ 2 is the angle between the vertical line of the visor 200 and the second wind speed sensor 430
  • ⁇ ⁇ is the wind direction.
  • the average wind speed of the first fan member 330 and the second fan member 340 controlled by the control unit 500 is proportional to the wind speed ( ⁇ ) obtained from [Equation 1] and [Equation 2]. It can be configured to.
  • the average wind speed of the first fan member 330 and the second fan member 340 controlled by the control unit 500 is wind speed information measured by the first wind speed sensor 420 and a second wind speed sensor 430 ) Is configured to be proportional to the average wind speed information of the measured wind speed information, the larger the average wind speed information measured, the larger the average wind speed of the first fan member 330 and the second fan member 340 may be.
  • the control unit 500 determines the wind direction ( ⁇ ⁇ ) value obtained from [Equation 1] and [Equation 2]. It can be configured to control the wind speed ratio of the first fan member 330 and the second fan member 340 by using. By controlling the wind speeds of the first fan member 330 and the second fan member 340 differently, purified air output from the first fan member 330 and the second fan member 340 due to external wind is generated. The path of the purified air is corrected for accurate delivery to the nose or mouth.
  • the control unit 500 After calculating the wind direction information by combining the above [Equation 1] and [Equation 2], the control unit 500 according to the wind direction information and wind speed information, the first fan member 330 and the second fan member ( 340) is configured to be controlled can be applied when the measurement of the sensor unit 400 is not disturbed by the body unit 100, the sensor unit 400 by the body unit 100 When the measurement of the wind speed is disturbed, the first fan member 330 that blows in a direction in which the size of the wind speed is greater among the wind speed information measured by the first wind speed sensor 420 and the wind speed information measured by the second wind speed sensor 430 ) And the second fan member 340 may be configured to more strongly control the intensity.
  • FIG. 9 to 11 are views showing an embodiment of a hat equipped with an air purifying unit according to the present invention.
  • a virtual center line c that passes vertically downward through the centers of the main body 100 and the visor 200 of the hat is set.
  • the center line may be set as a central surface passing through the center of the main body 100 and the visor 200 of the hat.
  • the nose and mouth which are the main organs for human breathing, are located in the center line (c).
  • FIG. 9 shows an overlapping area of winds that are blown from the first fan member 330 and the second fan member 340 and cross each other in the state where the wind is not blowing.
  • 100 shows a state that does not deviate from the center line (c)
  • FIG. 10 shows that the wind is blown from the first fan member 330 and the second fan member 340 so that the overlapping areas of the wind cross each other.
  • It shows a state outside the center line (c) of the unit 100
  • FIG. 11 shows the first fan member 330 and the control unit 500 according to wind direction information and wind speed information measured by the sensor unit 400.
  • the center line (c) of the overlapping area of the wind blown from the first fan member 330 and the second fan member 340 to cross each other by controlling the wind speed ratio of the two fan members 340 It shows the state that does not escape.
  • the control unit 500 of the hat equipped with the air purifying unit of the present invention controls the variable controller 520 according to the wind direction information and wind speed information measured by the sensor unit 400 to control the first fan member 330 And the wind speeds of the second fan member 340 are equal to each other, or the wind speeds of the first fan member 330 and the second fan member 340 are different from each other.
  • the control unit 500 drives the first fan member 330 and the second fan member 340 with different strengths
  • the first fan member 330 and the second fan member 340 are driven. It is possible to control the wind speed ratios of the first fan member 330 and the second fan member 340 so that the overlapping regions of the winds intersecting each other do not deviate from the center line c of the main body 100.
  • the main body 100 may be worn by the user so that the user's nose and mouth are placed on the center line c of the main body 100.
  • control unit 500 is configured to control the wind speed ratio of the first fan member 330 and the second fan member 340 according to wind direction information and wind speed information measured by the sensor unit 400. , Even if the wind blows in the air, the purified air blown by any one of the first fan member 330 and the second fan member 340 can be blown through the wearer's nose and mouth.
  • the air purifying unit blowing in the downward direction is provided on the visor of the hat, so that it is possible to breathe with purified air without wearing a separate accessory such as a mask to purify the air required for breathing. have.
  • body portion 110 receiving portion
  • sensor unit 410 wind direction wind speed sensor
  • first wind speed sensor 430 second wind speed sensor
  • Control unit 510 Power supply unit

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

La présente invention concerne une casquette pourvue d'une unité de purification d'air. Plus spécifiquement, la présente invention concerne une casquette pourvue d'une unité de purification d'air, la casquette comprenant sur son bord l'unité de purificateur d'air qui souffle de l'air vers le bas afin de permettre à un utilisateur de respirer l'air purifié sans porter un accessoire séparé tel qu'un masque facial pour purifier l'air nécessaire à la respiration.
PCT/KR2019/012793 2018-10-11 2019-10-01 Casquette pourvue d'une unité de purification d'air Ceased WO2020076001A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2018-0121355 2018-10-11
KR1020180121355A KR101962613B1 (ko) 2018-10-11 2018-10-11 공기정화부가 구비된 모자

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WO2020076001A1 true WO2020076001A1 (fr) 2020-04-16

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2595463A (en) * 2020-05-26 2021-12-01 Dyson Technology Ltd Headgear having an air purifier
WO2023195966A1 (fr) * 2022-04-08 2023-10-12 Wade James Joseph Épurateur d'air à porter sur soi à désinfection par lumière ultraviolette

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101962613B1 (ko) * 2018-10-11 2019-03-27 구본경 공기정화부가 구비된 모자
KR102658993B1 (ko) 2022-11-08 2024-04-19 조현규 모자 착탈형 송풍장치

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Publication number Priority date Publication date Assignee Title
KR100841259B1 (ko) * 2008-02-27 2008-06-25 백용기 송풍기가 구비된 모자
JP4295143B2 (ja) * 2004-03-19 2009-07-15 シャープ株式会社 携帯型空気浄化装置
US20100000007A1 (en) * 2008-04-30 2010-01-07 Wood Jess W Hat with a Fan and Filter
KR20180036377A (ko) * 2016-09-30 2018-04-09 롯데알미늄 주식회사 챙이 구비된 모자용 공기정화장치
KR101962613B1 (ko) * 2018-10-11 2019-03-27 구본경 공기정화부가 구비된 모자

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Publication number Priority date Publication date Assignee Title
US8118902B2 (en) 2007-03-29 2012-02-21 Toray Industries, Inc. Filtering medium and filter unit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4295143B2 (ja) * 2004-03-19 2009-07-15 シャープ株式会社 携帯型空気浄化装置
KR100841259B1 (ko) * 2008-02-27 2008-06-25 백용기 송풍기가 구비된 모자
US20100000007A1 (en) * 2008-04-30 2010-01-07 Wood Jess W Hat with a Fan and Filter
KR20180036377A (ko) * 2016-09-30 2018-04-09 롯데알미늄 주식회사 챙이 구비된 모자용 공기정화장치
KR101962613B1 (ko) * 2018-10-11 2019-03-27 구본경 공기정화부가 구비된 모자

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2595463A (en) * 2020-05-26 2021-12-01 Dyson Technology Ltd Headgear having an air purifier
GB2595463B (en) * 2020-05-26 2023-05-31 Dyson Technology Ltd Headgear having an air purifier
WO2023195966A1 (fr) * 2022-04-08 2023-10-12 Wade James Joseph Épurateur d'air à porter sur soi à désinfection par lumière ultraviolette

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