692results about "Breathing masks" patented technology

A wearable air purifier is provided and includes a headgear, an air delivery mask, and a fan. The air delivery mask is connected to the headgear and bounds an air delivery region. The air delivery mask is further configured to define a first airflow path to deliver a flow of air to the air delivery region. The headgear defines a second airflow path. The fan is configured to direct airflow to the first airflow path and the second airflow path.

To provide a mask which is excellent in adhesion stability and re-adhesion of an adhesive layer on cheeks and in which occurrence of pain upon removal and stickiness after removal is suppressed.SOLUTION: A mask includes: a mask base fabric; and an adhesive layer provided on an inner surface of the base fabric. The adhesive layer includes an adhesive base, (A) terpene-based resin, (B) hydrogenation rosin glycerol ester, and (C) liquid paraffin. A content of the (A) terpene-based resin is in a range of 6 to 18 mass% with respect to the entire adhesive layer. A mass ratio of a content of the (B) hydrogenation rosin glycerol ester to the content of the (A) terpene-based resin is in a range of B / A=0.6 to 3.0. The total content of the (A) terpene-based resin and the (B) hydrogenation rosin glycerol ester is in a range of 20 to 35 mass% with respect to the entire adhesive layer. A mass ratio of a content of the (C) liquid paraffin to the total content of the (A) terpene-based resin and the (B) hydrogenation rosin glycerol ester is within a range of C / (A+B)=1.0 to 3.0.SELECTED DRAWING: None

A safety helmet for a firefighter includes an outer shield having a neck opening and a front opening, a hinge located on an upper region of the front opening of the outer shield, a fire-retardant foam liner, a face shield including a sensor carrier attached to the hinge, a particulate air filter, a light emitting diode (LED) light strip, a mask mechanism configured to attach to the tapered nose opening of the transparent screen and the particulate air filter, a heads-up display (HUD) connected to an upper region of a proximal edge of the mask mechanism which faces the tapered nose opening, an oxygen port connected to the mask mechanism, a mask body connected to a distal edge of the mask mechanism, a speaker and microphone unit attached to the mask body, and a regulator nose cone.

Introduced here is a face mask system having a mask enclosure that contains, or otherwise directly supports, an automated liquid-droplet dispensing mechanism (ADM) for humidification. In operation, the enclosure and ADM are compact and lightweight so that when worn by a user can be supported entirely by the user's head and neck. The enclosure can be comprised of one or more layers of breathable fabric adapted to flexibly conform to the face of a user when worn and form a cavity that is adjacent to the user's nostrils and mouth. The ADM can be comprised of a reservoir in which liquid is stored, a respiratory cycle detector, a timer and controller, and a droplet dispenser that controllably dispenses droplets of the liquid from the reservoir into the cavity for inhalation by the user.

The present invention relates, in general terms, to a face mask. The present invention also relates, in general terms, to composite material, iron-iron oxide compositions and their methods of fabrication thereof. In particular, the iron-iron oxide composition comprises a cashew testa extract and iron particles and / or oxide core-shell particles. The iron-iron oxide composition can be used as an anti-microbial composition.

The invention provides an intelligent hydrogen sulfide protection device and an intelligent hydrogen sulfide protection method. The intelligent hydrogen sulfide protection device comprises a device shell, a quaternary sensor array, a dynamic response system and an integrated protection unit, the quaternary sensor array comprises an electrochemical sensor, an NDIR infrared sensor, an environment temperature and humidity sensor and an air pressure sensor; the dynamic response system can perform intelligent assessment according to the safety index information transmitted by the quaternary sensor array and obtain a safety risk assessment value; and the integrated protection unit can perform integrated protection according to the safety risk assessment value. Quick response active protection can be achieved, all the protection units are coordinated and linked, and the protection effect is excellent.

The invention discloses a pollution monitoring and air supply control method for a head-mounted respiratory protection system and a storage medium. The pollution monitoring and air supply control method comprises the following steps: collecting pollutant time sequence data in real time by using an arranged multispectral sensor, and transmitting the pollutant time sequence data to a central processing unit of the head-mounted respiratory protection system; the method comprises the following steps: processing time sequence data of pollutants by using fast Fourier transform, extracting dominant frequency characteristics of the pollutants, and calculating an average particle size of the pollutants; the air volume of each air inlet channel of the head-mounted respiratory protection system is dynamically distributed by combining the average particle size and the diffusion characteristic of pollutants and the fluid constraint of the respiratory protection system and utilizing a particle swarm optimization algorithm, and the air volume distribution is optimized according to the characteristics of the pollutants with different particle sizes and the capacity of the respiratory protection system; the lowest energy consumption is realized; meanwhile, the optimal pollutant removal effect is ensured; and according to the optimized air volume value, a control instruction is generated to adjust the air valve opening degree of each air inlet channel, the air volume distribution of each air inlet channel is accurately controlled, and the health of workers in the current workplace is guaranteed.

A respiratory mask system includes a mask interface and a headgear assembly. The headgear assembly is adjustable and comprised of an elastic portion, a non-elastic portion and a restriction mechanism configured to provide a force resisting movement of the non-elastic portion when the elastic portion is extended. There is a support beam coupled to the non-elastic portion and extending along a portion of the headgear that is curved along its longitudinal extent. In this way particular seal modules can be comfortably fitted to a user and any blow off force is mitigated. A particular example of the respiratory mask system includes provision for removable attachment between the seal and a mask frame, the mask frame and a yoke of the headgear; and between a conduit and the mask frame.

The utility model belongs to the technical field of emergency rescue, and particularly relates to an air respirator mask and a system. The air respirator mask comprises a mask body and a transparent face mirror, a mouth and nose mask is arranged in an inner cavity of the mask body, an air circulation area is formed between the outer portion of the mouth and nose mask and the inner side of the face mirror, two air suction valve plates are symmetrically arranged on the mouth and nose mask, and a double-mouth breathing seat is arranged on the face mirror. The double-port breathing seat is provided with an inspiration valve connector and an exhalation valve connector, the inspiration valve connector is used for being connected with an air respirator air bottle and an air supply valve of the air respirator air bottle, and the inspiration valve connector is used for being connected with an exhalation valve seat which can be freely inserted and detached. By designing the double-port breathing seat and the exhalation valve seat capable of being freely inserted and detached, when gas in air exhalation is completely consumed, on the premise that an air respirator mask and an air supply valve of the air respirator mask are not detached, the exhalation valve seat is pulled out, and a chemical oxygen respirator is inserted into an exhalation valve interface, so that closed-loop type oxygen support can be provided for a wearer; and the respiratory protection time of rescuers is prolonged.

A respiratory mask (100) comprising a facepiece (108) including a viewing window (102) and a connection (104) for an air filtering device (106) and / or an air filtering device (106), and comprising a mask holding device (110) for gas-tight attachment of the facepiece (108) to the head of a wearer, characterized in that the facepiece (108) has an extended sealing area (112) on its outer circumference and the mask holding device (110) comprises at least one pair of band-like or strap-like tension elements (114) whose attachments (116) on the facepiece (108) form tension points (118), wherein a stiffening element (120) associated with the extended sealing area (112) extends laterally on both sides between the tension points (118) in such a way that, in intended use, a pressure acts laterally on the extended sealing area (112).

This invention provides face masks, including filter masks, and methods for manufacturing them. [Solution] A face mask comprising a mask body 143 defining a cavity for accommodating the wearer's nose and mouth, and a sealing member 144 hanging down from the mask body to engage with the wearer's face, wherein the mask body includes a filter 141 and a gas inlet 142, the filter being located in a first area of ​​the mask body and the gas inlet being located in a second area of ​​the mask body, a nose portion for accommodating the wearer's nose, a mouth portion for accommodating the wearer's mouth, and a cheek portion extending laterally across the wearer's cheek.

A mask assembly includes a mask interface and a headgear assembly. The mask interface includes a housing and a seal that seals around a user's nose and / or mouth in use. The headgear assembly secures the mask interface to the user's face in use. The headgear assembly can include a top strap, a rear section, and side arms. The top strap can be manually adjustable. The rear section can be temporarily expanded to allow for donning and / or doffing of the mask assembly. The side arms can be automatically adjustable.

A protective mask suited for quick regulatory approval and mass production to provide protective use of a wearer includes a mask body having a major portion forming at least one breathing opening configured for holding a filter. The mask body forms a cover contoured to cover, except for the at least one breathing opening, the wearer's mouth and nose when the mask is worn. The mask body further has a flange, wherein a length of the flange extends along a major portion of an edge of the mask body major portion, the flange being configured for pressing against the wearer's face when the mask is worn. The mask body is a material selected from the group consisting of polyethylene terephthalate, polyethylene terephthalate glycol, and poly methyl methacrylate, and combinations thereof.

To provide a personal protection system capable of providing a sterile barrier between a wearer and the surrounding environment in a medical or surgical situation.SOLUTION: A personal protection system comprising a helmet having a garment attached thereto. The helmet comprises a motorized assembly, such as a fan. At least one button for adjusting the operation of the motorized assembly is attached to the face shield of the garment. The helmet comprises a detector connected to the button to monitor the state of the button. When the button is pressed, the detector sends a signal to a controller that regulates the operation of the motorized assembly. The controller then sets the operational state of the assembly based on the depression of the control button so that the assembly operates in the state desired by the wearer of the personal protection system.SELECTED DRAWING: Figure 1

The invention belongs to the technical field of flow fine adjustment control of an aircraft oxygen system, and relates to a flow control device which comprises a shell which is a barrel with two open ends, a partition plate is arranged in the middle to divide the interior of the shell into an upper cavity and a lower cavity, an air inlet is formed in the upper cavity, an air outlet is formed in the lower cavity, and a center through hole is formed in the center of the partition plate; the partition plate is provided with a plurality of main air holes around the central through hole; the lower cover plate seals the lower end opening of the shell, and the upper end face of the lower cover plate is provided with a short cylinder; the lower end of the spring sleeves the short cylinder; a lower-end column body sleeves the upper end of the spring, and an upper-end ball head seals the lower end face of the central through hole under the action of the spring; the upper cover seals the upper end opening of the shell; the lower-end valve plate is arranged above the partition plate, covers the main air hole and is provided with an air channel for communicating the side wall of the valve plate with the center of the lower end surface of the valve plate, so that the upper cavity is communicated with the central through hole when the push rod valve falls down; the upper end push rod penetrates through the upper cover.

This invention relates to the field of respiratory equipment, specifically to a dust and toxic substance safety early warning respiratory assistance system, comprising a mask module, a purification module, and a monitoring module. The mask module includes a mask body with a first inlet and a first outlet. The purification module includes a first filter module and / or a second filter module. The first filter module is filled with a first filter material, and the second filter module is filled with a second filter material. The first and second filter modules are each detachable. The monitoring module is detachably connected to either the first or second filter module and contains sensors for monitoring the operating status of the first and second filter modules. Air passes through the purification module and the monitoring module sequentially before entering the mask body. This invention discloses a dust and toxic substance safety early warning respiratory assistance system that can intelligently monitor in real time, proactively issue an early warning in case of filtration failure, and optimize the air filtration path to maximize the utilization rate of the filter material and the purification effect.

The present invention provides a mask comprising a mask body that covers the face of a wearer and a wearing string attached to both sides of the mask body, the mask body including a filter member consisting of a support layer having a mesh structure and a filter coating layer formed on the outer surface of the support layer and filtering pollutants, the filter coating layer being made of a web of fine fibers electrospun onto the support layer.

A suspension type nasal air conditioner comprises an outer nose enclosing body, an inner nose enclosing body, an air inlet, an air outlet and an air outlet, the outer nose enclosing body is in a barrel shape with two open ends, and the outer nose enclosing body completely or partially encloses an outer nose in the inner space of the outer nose enclosing body; the part, close to a near-end opening, of the outer nose enclosing body is a skin contact part, the part, close to a far-end opening, of the outer nose enclosing body is a suspension part, the restraint body is composed of a restraint body connecting part and a restraint body free part, the restraint body connecting part is connected with the outer nose enclosing body, and the restraint body free part is connected with the restraint body connecting part. At least one part of the free part of the restraint body is in conformal or interference contact with the nose skin so as to form friction force with the nose skin, and the outer nose surrounding body is prevented from falling off from the outer nose; the device is small, light and convenient to use, the aim of humidifying and warming the self-service nasal skin and nasal mucosa of the human body is achieved by intercepting moisture and heat of exhaled air, the functions of a moisture and heat exchanger and an air filter are achieved, and energy is remarkably saved.

The present invention relates to powered air purifying respirators (PAPRs) and methods to overcome issues associated with their use in high magnetic field environments.

The utility model discloses a construction site flying dust protection mask which comprises a mask body, goggles are installed on the mask body, an air suction port is installed below the goggles, a plurality of air holes are formed in one end in the air suction port, one end of the air suction port is connected with a fixing ring, and the fixing ring is connected with an air inlet. An activated carbon filter disc and a net surface filter disc are respectively mounted in the fixing ring; a protective lens is mounted on the inner side of the protective frame, a mounting groove is formed in the joint of the protective lens and the protective frame, a moving plate is mounted at one end of the protective frame, and a silica gel scraper is connected to one end of the moving plate. Compared with an existing device, the dust protection mask for the construction site has the advantages that the goggles can be protected through the protection lenses, dust can be prevented from making direct contact with the protection lenses, the goggles are high-transmittance glass lenses, the protection lenses are high-transmittance plastic lenses, and the good visual effect can be achieved through combined use; and the protective lenses can be conveniently detached and replaced through the mounting grooves.

This application relates to the field of air respirator masks, and more particularly to an air respirator mask with a quickly fixed Bluetooth microphone, comprising a base, a lens mounted on the outside of the base, and a mouth and nose mask mounted on the lower side of the base. The lens abuts against the side wall of the mouth and nose mask, and a receiving cavity is formed on the upper side of the mouth and nose mask. The Bluetooth microphone is detachably fixed to the inner wall of the receiving cavity. This application has the effect of reducing obstruction of the worker's lower field of vision by changing the installation method of the Bluetooth microphone, thereby increasing the worker's full field of vision and binocular field of vision.

A liquid carrying container particularly suited for military use can be sized and configured to easily fit into the pockets or pouches of military uniforms, tactical gear, and other gear, such as flight suits, or into an ammunition magazine holder, which are specifically provided for holding equipment and supplies which require easy one handed access. The container is substantially shape retaining and has a bottom edge. The container includes a container closure having a push-pull element and a protective over cap. The closure maintains a fixed position with respect to the container so when retrieved by a user with one hand always opens in the same direction without the user needing to see the retrieved container. The container can supply liquid to a tube extending from a face mask using an adapter that connects a face mask tube valve to the push-pull element of the container closure.

A patient interface includes a sealing arrangement adapted to provide an effective seal with the patient's nose, an inlet conduit arrangement adapted to deliver breathable gas to the sealing arrangement, and a cover that substantially encloses the sealing arrangement and / or the inlet conduit arrangement.

The invention relates to a face mask comprising a compound structure with an inner layer and two sandwich layers, whereinthe inner layer is made from a filter material for filtering particles and germs,the sandwich layers are made from a textile material,the inner layer is sandwiched by the sandwich layers, andthe sandwich layers are bonded to the inner layer at least in sections along the perimeter of the face mask and in sections in the inner area of the face mask.In this way, a reusable face mask with enhanced filtration efficiency is provided.

The invention discloses a positive pressure type air respirator full face mask with a dual-mode connector, and relates to the field of respiratory protection equipment, the positive pressure type air respirator full face mask comprises a full face mask main body and an air supply connector seat communicated with the full face mask main body, and the full face mask main body is further communicated with a chemical oxygen connector seat; the full face mask body is provided with a connecting mechanism used for being connected with a chemical oxygen self-rescuer, a lever support is fixed in the chemical oxygen connector seat, a sealing assembly used for sealing an expiration opening of the chemical oxygen connector seat is arranged on the lever support, and a stirring mechanism used for driving the sealing assembly to move is arranged in the chemical oxygen connector seat. The double-mode connector function is achieved, the double-mode connector can be conveniently connected with and detached from the chemical oxygen self-rescuer, the technical effect that the expiration opening is effectively sealed and opened is guaranteed, and the reliability and practicability of respiratory protection are improved.

A gas purification device for nasal applications is provided for purifying and / or reducing undesirable substances in air and / or gases to be entered into the nasal cavity. The gas purification device for nasal application can comprise a gas purification device, a shell part, a power supply part, a fan part, a filtering part, a cover body, a sterilization irradiation part, an aroma part, a nasal plug part, a monitoring part and a medicine part.

A frame insert is disclosed for use in support of a conventional protective face mask covering forming a conventional single chamber over the nose and mouth of the wearer wherein the frame insert is specially formed and configured to engage the surface coverings of the single chamber mask in a releasable attachment and provide separate isolated chambers about the nose and mouth regions with distinct air flow passages for healthier breathing by the wearer. In one aspect of the invention, the frame insert is integrally formed in a triangular shape comprising a first edge, a second edge and a curved base strut therebetween along the perimeter, the first edge and the second edge converging to meet at a vertex forwardmost on the frame insert and the base strut extending in a arcuate configuration between separate ends of the first edge and second edge rearward on the frame insert. In another aspect of the invention, the frame insert is integrally formed in a trapezoidal shape with the first edge and the second edge being joined with an intermediate edge forwardmost on the perimeter of the frame insert. Interstitial slots formed along the perimeter lengths of the first and second edge provide sliding engagement of the frame insert with the surface coverings of the mask allowing proper positioning of the frame insert within the mask with reduced leakage gaps therebetween.

The invention relates to the technical field of fire-fighting masks, in particular to a fire-fighting protective mask with a bidirectional voice communication function, which comprises a fire-fighting mask body and a filter, a protective cylinder is in threaded connection with the front side of the filter, an adjusting cover is rotatably arranged at the front end of the outer side of the protective cylinder, and the fire-fighting protective mask further comprises a transition gear; the adjusting frame is rotationally arranged between the inner wall of the adjusting cover and the outer wall of the protective cylinder. According to the invention, the gear and gear ring transmission mechanism is driven by rotating the adjusting cover, so that the opening and closing angles of the plurality of sealing baffles on the front surface of the protective cylinder can be synchronously and accurately controlled, and the sectional area of the air inlet can be continuously adjusted; by means of the design, a wearer can buffer hot airflow impact in a small opening state in the initial wearing process and provide sufficient airflow contact time for the canister so as to improve the filtering efficiency, the mask can be switched to a large opening state when high-intensity operation is needed so as to remarkably reduce inspiration resistance, the mask wearing comfort is improved, and meanwhile the breathing safety of the wearer is guaranteed.