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1.WO/2025/145810FOLLOWING-TYPE ASSISTED AIR-SUPPLY RESPIRATOR AND CONTROL METHOD THEREFOR

WO - 10.07.2025

Int.Class A62B 18/02 Appl.No PCT/CN2024/134795 Applicant CHANGZHOU SHINE SCIENCE & TECHNOLOGY CO.LTD. Inventor CHEN, Liang

The present invention relates to the technical field of respirators, and in particular to a following-type assisted air-supply respirator and a control method therefor. The respirator comprises: a tight-fitting mask, wherein the tight-fitting mask covers an area where the mouth and the nose are located, and an inner cavity is formed inside the tight-fitting mask; an exhalation valve connected to the tight-fitting mask and communicated with the inner cavity, wherein the exhalation valve is opened in one direction during exhalation; an air inlet cavity formed inside the tight-fitting mask, wherein an inhalation valve is arranged on the air inlet cavity, and the inhalation valve is configured to be opened in one direction during inhalation; a filter arranged on the tight-fitting mask and communicated with the air inlet cavity; and an assisted air-supply mechanism comprising a fan extending into the air inlet cavity, a controller for controlling the rotating speed of the fan, and a sensor arranged in the tight-fitting mask, wherein the fan is used for delivering external air into the air inlet cavity, when the sensor senses inhalation of a human body, the rotating speed of the fan is increased, and when the sensor senses exhalation of the human body, the rotating speed of the fan is slowed down. By means of the assisted air-supply mode, the present invention improves user experience.

2.20250222286GAS DELIVERY APPARATUS FOR NASAL APPLICATION

US - 10.07.2025

Int.Class A62B 23/06 Appl.No 19089927 Applicant James L. Orrington, II D.D.S., P.C. Inventor James Orrington, II

A gas delivery apparatus for nasal application is provided for purifying and/or reducing undesirable materials from air and/or gas intended to enter a nasal cavity. The gas delivery apparatus for nasal application may include a housing component, power component, fan component, filtration component, cap, germicidal irradiation component, aroma component, nose plug component, monitoring component, and medicinal component.

3.WO/2025/137434DEVICE FOR PREVENTING AIRBORNE PATHOGENS FROM ENTERING THE NASAL AIRWAY

WO - 26.06.2025

Int.Class A61M 16/06 Appl.No PCT/US2024/061259 Applicant MENCIA, Andres Inventor MENCIA, Andres

A device for blocking the nasal airway at the opening of the nostrils has two tubes that terminate at distal tips. The tubes are each separated into channels, or lumens, running the length of the tubes, including an outer lumen that extends from an inflation connection port to an inflatable donut just below the distal tip of each tube. With the distal tips received in the respective left and right nostrils of the user, the donuts are inflated to close off the nostrils at the rim, adjacent the nasal vestibule. Filters may be provided between the inflation ports and the distal tips for cleaning air prior to entry into the nasal cavity. The device may further include left and right ear straps to secure the device on the user's ears.

4.WO/2025/133782RESPIRATORY PROTECTION DEVICES AND METHODS OF MANUFACTURING THE SAME

WO - 26.06.2025

Int.Class A62B 18/08 Appl.No PCT/IB2024/062095 Applicant 3M INNOVATIVE PROPERTIES COMPANY Inventor WANG, Wenli

A respirator including a layer of wrinkled media is presented. The layer of wrinkled media has a transparent window sealed to a body of the respirator such that a mouth of a wearer of the respirator is visible through the transparent window, wherein the respirator is a high-efficiency respirator.

5.WO/2025/130574AIR PRESSURE COMPENSATION CONTROL SYSTEM AND METHOD FOR POWERED AIR SUPPLY FILTERING RESPIRATOR

WO - 26.06.2025

Int.Class A62B 23/02 Appl.No PCT/CN2024/135999 Applicant CHANGZHOU SHINE SCIENCE & TECHNOLOGY CO. LTD. Inventor CHEN, Liang

An air pressure compensation control system and method for a powered air supply filtering respirator, comprising: a main unit (1) and a battery pack (2); a waterproof breathable membrane (3) is mounted on a through hole in a housing of the main unit or the battery pack; an acquisition module is arranged in a cavity of the main unit or the battery pack, and a conversion module, a comparison module, and a control module are arranged in the cavity of the main unit; the acquisition module detects the actual atmospheric pressure in real time; the conversion module receives the external actual atmospheric pressure and converts same into an electrical signal; the comparison module receives the electrical signal, calculates a specific numerical value of the atmospheric pressure, compares same with the standard air pressure of the laboratory, and outputs an air pressure difference value; and the control module dynamically adjusts the rotation speed of a fan (6) in real time according to the air pressure difference value, in order to control the respirator to keep the internal and external pressure difference constant under different environmental conditions, providing customers with a continuous and stable air output, and effectively guaranteeing the normal operation of the respirator and safety of the user.

6.120189652多功能防护头罩

CN - 24.06.2025

Int.Class A62B 18/02 Appl.No 202510624158.4 Applicant 中国人民解放军空军特色医学中心 Inventor 赵城城

本发明公开了多功能防护头罩，属于防护装备技术领域。其技术方案要点为：该头罩包含防护罩本体、环境传感器组、模块化过滤单元、环境调控组件和智能控制中枢。防护罩本体形成面部密闭空间；环境传感器组用于获取多种环境及生理数据；模块化过滤单元设置多级过滤层并连接供氧模块；环境调控组件可调节内部温度；智能控制中枢依据传感器数据控制过滤层和供氧模块。该头罩解决了现有防护装备无法根据环境和人体生理状态智能调节防护功能的问题。通过上述技术手段，实现了根据实时环境和用户生理状态动态调整防护策略，提升防护可靠性、舒适性，延长设备续航时间等有益效果。

7.20250194715Facemasks with Material Layers for Enhanced Bonding Process

US - 19.06.2025

Int.Class A41D 13/11 Appl.No 19064798 Applicant O&M Halyard, Inc. Inventor Ajay Y. Houde

A disposable facemask is provided having a filter body with an opening sized to cover the nose and mouth of a wearer. The filter body further includes an outer mask layer and an inner mask layer, and one or more intermediate layers disposed between the outer and inner mask layers. At least one of the intermediate layers is a nonwoven web layer including thermoplastic filaments formed from a random copolymer, or a random copolymer blended with a homopolymer.

8.WO/2025/125969RESPIRATORY PROTECTION DEVICES AND METHODS OF MANUFACTURING THE SAME

WO - 19.06.2025

Int.Class A62B 23/00 Appl.No PCT/IB2024/061958 Applicant 3M INNOVATIVE PROPERTIES COMPANY Inventor WANG, Wenli

A disposable respirator containing a sorbent media is presented that includes a layer of wrinkled media. The wrinkled media includes a first series of substantially parallel non-bonded elastic fibers or filaments between a first nonwoven porous web and a second nonwoven porous web. The first non- woven porous web comprises a sorbent material, wherein the sorbent material comprises sorbent particles having a mesh size between about 8x16 and 80x325. The first non-woven porous web is directly bonded to the second non-woven porous web. At least one portion of the wrinkled media is resiliently extensible under tension. The layer of wrinkled media is formed into the disposable respirator.

9.WO/2025/125970RESPIRATORY PROTECTION DEVICES AND METHODS OF MANUFACTURING THE SAME

WO - 19.06.2025

Int.Class A62B 18/08 Appl.No PCT/IB2024/061960 Applicant 3M INNOVATIVE PROPERTIES COMPANY Inventor WANG, Wenli

A disposable respirator is presented that includes a layer of wrinkled media. The wrinkled media includes: a first series of substantially parallel non-bonded elastic material between a first and a second non-woven porous web. The first non-woven porous web is directly bonded to the second non-woven porous web. At least one portion of the wrinkled media is resiliently extensible under tension. The respirator also includes a fit feature including wrinkled media.

10.0002841970NASAL FILTER

RU - 18.06.2025

Int.Class A62B 23/06 Appl.No 2024122123 Applicant Inventor Огнерубов Дмитрий Викторович (RU)

FIELD: breathing masks or helmets. SUBSTANCE: nasal filter is intended for protection of human respiratory organs against harmful environmental factors. Nasal filter comprises one flexible U-shaped element and two rigid elongated support elements whereon elliptic filtration segments are mounted. Each filtering elliptical segment has cutouts. Cutouts of each filtering elliptical segment are arranged with exclusion of overlapping of cutouts of the previous or next filtering elliptical segment. Cutouts on the filtering elliptical segments form the direction of the air flow entering the nasal canal, along the spiral path. Flexible U-element is configured to be integrated into the nasal canal. Flexible U-shaped element further comprises at least one solid filter element arranged between filtering elliptical segments. Cutouts of each filtering elliptical segment are located on diametrically opposite sides of each filtering elliptical segment. EFFECT: more effective protection of the nasal cavity from negative environmental factors. 3 cl, 3 dwg

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