ES1289749U - Individual protection equipment (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Individual protection equipment with fixing means to the head of the user characterized by a branched tubular support with holes and/or suction slots and orifices and/or expulsion slots; Said equipment protects the head of pathogenic agents and contaminants thanks to a filtered air flow created by a dispenser device and filtered air flow vacuum cleaner; Said device shares with the equipment the tubular support structure that hosts a plurality of holes and/or slots, some to eject filtered air to suck filtered air: the holes and/or slots (2a) of expulsion are termination of conduits by which air filtered by filters arranged in the support (1) is impulsed; The hole and/or aspiration slots (2b) are the onset of conduits that aspirate filtered air expelled by the holes and/or slots (2a) to (2b); There is a filter at the air intake of at least one fan and/or air pump located in support (1); There is a filter in the vacuum conduits (2D) before propeller (3h) of drive with its motor (3M). The fan (3M) with (3H) and/or air pump is powered by a battery powered by electrical connection, micro-USB type or equivalent, located in the support structure (1). (Machine-translation by Google Translate, not legally binding)

Description

DESCRIPTION

Individual protection equipment

TECHNICAL SECTOR

The present invention falls within the technical sector of personal protective equipment (EPIS), more specifically in relation to the protection of any person, to limit the risk of contagion due to germs, bacteria, viruses, small toxic particles that may be suspended in the environment; hygienic-sanitary sector of any field, work, educational and domestic and in some models it provides a germicidal and inhibitory power of toxicity on the inspired and expired air.

This invention fits in the sector that corresponds to current necessities of life, in particular protective and hygiene garments and articles, within the sector of the industry dedicated to the manufacture of hygienic protection equipment and has application in the medicine sector. both to facilitate the work of health personnel and for patient treatment.

STATE OF THE ART

The use of air as a means of disinfection, detoxification and as a barrier against pathogens and viruses is becoming evident in 2020/21 from the pandemic suffered. The invention uses a filtered airflow aspirator and dispensing device.

Pursued objectives:

(A) prevent impurities or contaminants from entering directly or indirectly into the respiratory tract, through the eyes, mucous membranes, through the skin or through the wounds of the user.

(B) protect others from being exposed to pathogens and other exhaled contaminants exuded by the wearer. They are of different degrees of protection.

(C) Facilitate the application of treatments;

In the first situation, filtered airflow devices are used in an environment where the air contains particles that are harmful to health. This scope includes FFP masks.

In order to achieve any of these objectives, the invention must be able to remain well adjusted to the user's face. To achieve a good fit, filtering face masks generally have a headband that extends laterally from the mask around the back of the wearer's head and neck.

We usually see that the seal between the mask and the face is defective, so the suction of a filtered air flow by the dispensing and suction device prevents the dispersion of harmful particles.

Regardless of the different types of masks and masks, which with a substantially complex structure, protect the user's respiratory system against harmful agents or contaminants from the surrounding environment, and which are normally used exclusively in work areas with high At risk, simpler masks are also known, more widely used and in which a lower level of protection is obviously provided.

There are masks of a textile nature, which protect the user's mouth and nose and which are obviously attached to their head by different means, as well as masks made from a body made of spongy material and in a single molded piece, which constitutes a kind of cup that adapts to the aforementioned facial area and that is also fixed to the user's head by any appropriate means.

A large part of the masks used by citizens are not approved and in other cases have expired; the invention defended in this memory in these cases reduces infections.

Filter masks [filtenng-face-pieces or ffp for its acronym in English], protect the user as they are designed to filter particles, liquid aerosols and pathogens present in the environment, preventing them from being inhaled by the user. Depending on the filtration efficiency, the mask is class 1, 2 or 3. The filter material is made up of a network of plastic fibers which retains the contaminant; they have an added polarity that decreases with use and humidity and the invention in question increases the shelf life.

Illnesses like COVID 19 spread mainly from person to person through droplets that are expelled from the nose or mouth of an infected person when coughing, sneezing, or talking. These droplets are relatively heavy, do not travel very far, and fall quickly to the ground. A person can get COVID 19 if they breathe in droplets from a person infected with the virus. That's why it's It is important to stay at least two meters away from others. These droplets can land on objects and surfaces around the person, such as tables, doorknobs, and railings, so other people can become infected if they touch those objects or surfaces and then touch their eyes, nose, or mouth. That's why it's important to wash your hands frequently with soap and water or an alcohol-based hand sanitizer.

A novelty of the invention object of this application is that a screen-curtain of filtered air and an air sweep that protects the user is incorporated. The idea arises from the need to keep pathogens out of the mask when eating, drinking, talking or smoking, reduce the chances of infection and favor the work of restaurants, entertainment venues, concerts, sporting events, sports activities , transport (plane, metro, taxi, buses).

The applicant does not know of any solution (apart from other own inventions that are in the process of being processed) that can be considered similar to the invention since he has only found utility models that include only the diffusion of air, some of which create a flow of air from the user to the surroundings, causing a concentration of pathogenic agents around those who do not wear them, this concept/result being highly unsupportive. This does not happen when the expulsion of air is combined with suction and the protected areas are dimensioned to a minimum thanks to the use of windows and a flat or three-dimensional dispensing/suction grid.

Another achievement of the invention is to manage to maintain a high concentration of substances and ions in the areas that we are interested in protecting, since the suction prevents excessive dispersion and by sizing it and timing it in a balanced way, it avoids creating a dangerous flow of pathogenic agents towards the Username.

The only files found that use the external fan air conditioner are ES-2778000_A1 and ES-2797248_A1.

BRIEF EXPLANATION OF THE INVENTION

PPE (Personal Protection Equipment) will be understood as any equipment intended to be worn or held by the worker or user to protect him from one or more risks that may threaten his safety or health, as well as any complement or accessory intended to such end.

The invention develops personal protection equipment that includes or is coupled to a filtered air flow dispensing and suction device with the aim of obtaining a screen and a protective curtain of filtered air that can include disinfecting, toxin neutralizing, regenerating, therapeutic, relaxing and any function (to improve prevention and health) not listed that can be adapted. The invention comprises a hollow support structure that houses a plurality of holes and/or slots responsible for circulating the filtered air for the formation of the screen and air curtain. For greater clarity of the operation of a motor with a propeller in some pipes, we are going to analyze the operation of a hair dryer: when starting it at first sight there is only diffusion, but, if we bring a napkin close to the air intake area, this it gets stuck by a suction force. This happens because the drive medium creates a vacuum and the back air occupies that empty space; this displacement of air reaches the air intake whose section is wider than the section of the mouth of the dryer. If the section of the air intake is reduced, the aspiration increases. Simplifying the whole: in a conduit of the same diameter in whose center there is an impulsion propeller driven by a motor, the force with which the air is expelled is equal to that which is sucked in by vacuum; filter and other intervening elements increase friction and decrease the speed of expulsion and/or suction. The invention includes at least one motor with an impulsion propeller (or means with an equivalent function) to generate an expulsion/diffusion and suction. The invention can be part of a PPE or be an autonomous element that can be attached to all PPE and mask (with or without window) providing a safety plus.

A first main embodiment of the present invention aims to protect the head (the entire area of the scalp) and is coupled to an oral/nasal mask with a filtered air flow dispensing and suction device. Said mask has a window that facilitates consumption in bars, restaurants. Protection is by filtered airflow.

The invention can be part of the mask or be an autonomous element that can be attached to any mask with or without a window, providing a safety plus.

The embodiment uses EPA filter. The window opening mechanism can be manual or mechanical.

FUNCTIONS OF THE FILTERED AIR FLOW DISPENSER AND EXTRACTOR DEVICE IN INTERIOR AND EXTERIOR SPACES

1) Filtering: prevents harmful or toxic particles and viruses, bacteria and other pathogenic elements from affecting the user.

2) Germicide: destroys viruses, bacteria and pathogenic elements

3) Protect

4) Prevents spread of viruses or bacteria

5) Allows confinement at home with relatives

6) Facilitates the use of the mask

7) Facilitates social interaction

THE REALIZATION PART OF THE FOLLOWING ELEMENTS:

1. Hollow support structure where a propeller (or means with an equivalent function) moved by a motor circulates the air that has previously passed through a filter medium. If we simplify it into a pipe, at one end there is the air intake and/or the suction holes, followed by the filter, propeller driven by a motor and at the end of the tube are the holes and/or expulsion slots (figure 1, 2 and 12). Mechanical and/or electronic elements such as valves, sensors, manual air flow regulators, etc. are installed on this support structure. The PPE defines a safe zone and adapts ergonomically to the user. Part is reusable since it can be cleaned with simple soap and water or alcohol, except for electronic elements, motor, etc. The filter element can be easily renewed, removing it from the encapsulation and replacing it with a new one.

2. BODY: (1) can coincide with the support structure, fulfills the function of obtaining a protected area and volume and functions as a base for various elements of the mask, such as window, gaskets and different devices in the coupling area (example coupling: it is the area where the filter and fan fit into the mask in figure 5). The body in an oro-nasal mask creates a safe breathing chamber between the mask and the user's face and fits ergonomically to the face. In this case, the support structure of the filtered air flow dispenser and suction device, when it is included, is part of the body. Part or all of it is single-use or reusable, easy to clean because it is made of materials that can be cleaned with simple soap and water or alcohol (non-porous materials such as sanitary rubbers and silicones or biodegradable plastics and any material that has similar characteristics ) with the exception of the filter element that can be easily renewed, removing it from the encapsulation or cover and replacing it with a new one. Another exception is all electronic and electrical components. The preferred embodiment mask of the invention can have a mouth/nose/eyes cover (figure 4 and 5).

HOLES AND SLOTS: There are at least two types of independent holes and slots: expulsion (end of the expulsion duct) and suction (beginning of the suction duct). Filtered and driven air arrives at the expulsion holes and/or slots (2a) and circulates through the expulsion ducts (2c): filtered air is expelled through (2a) towards the suction holes and/or slots (2b) and is sucked in through the suction ducts.

DIFFUSSION HOLES AND SLOTS: they are at the end of the exhaust duct and diffuse filtered air (partly or totally) towards a direction other than that which allows the filtered air to be sucked in through the suction holes or slots. They are important at the outer limits of the air gap to improve/ensure the air gap seal. Also included are those that create an air curtain and are not directly related to the air screen and the suction holes or slots (example 1: an air curtain on top of an air screen; example 2: an air curtain alone or combined with other air curtains).

HOLES AND/OR SLOTS FOR SUCTION OF UNFILTERED AIR: an example of their use is when they are distributed along the joint between the face and the mask. By reducing the pressure exerted by the fastening elements on the skin, the seal decreases its sealing function and the activation of suction through the holes and/or suction slots of unfiltered air prevents viruses from the environment from infecting the user or that the virus released by the user spreads to the environment (activation can be manual or programmable).

CONDUITS. There are at least two types of independent ducts that are connected by a compartment where the propeller is: they are the expulsion ducts and the suction ducts. The ejection duct starts from the delivery propeller, branches off and ends at the ejection holes and/or slots (the type of ejection depends on the shape of the holes and/or slots and/or the coupled nozzle). The suction duct starts from the suction holes and/or slots and/or the air intake. A branch of ducts usually start from the suction holes and/or slots that converge in at least one main one (2d). The filter (3a) is included between the suction orifices and/or slots and the propeller (the type of suction depends on the shape of the orifice and/or slot and/or the attached nozzle).

FILTERED AIR SCREEN: (figure 2 and 3) the filtered air is propelled by an impeller (motor type with a propeller) through expulsion ducts; the expulsion ducts branch allowing the filtered air to reach expulsion holes and/or slots (2a) in the device support structure and is expelled towards (2b) and sucked in through the suction holes and/or slots, creating the air screen (4); the sucked air circulates through the suction ducts of the support and returns to the filter forming a closed circuit or is expelled (2ai) as in figure 3. In this circuit the air before and/or after being filtered can be enriched with bactericidal substances and antiviral and/or with ions that destroy viruses, bacteria and pathogenic agents without being harmful to the user. A screen of filtered air is also formed between two or more open circuits, figure 3 type. There are many possible combinations. this curtain can be above and on the sides of the filtered air screen; it can be short or long haul; can be independent; It aims to increase the protected area around the areas through which the user becomes infected or intoxicated. A safe volume is created around the window and the PPE. There may be curtains of larger dimensions such as by diffused and/or sprayed air. In figure 3 it can be created by the holes (2ai)

FAN: stands for propeller (3h) driven by a motor (3m). It serves to create the air curtain and the air screen.

VENTILATOR-BREATHING: increases the contribution of filtered air to breathe it and relieve suffocation. 2 breathing fans are usually used (with one motor each or one motor with two propellers); a fan introduces filtered air into the breathing chamber between (for example) the mask and the wearer's face; the second ventilator has a suction function and draws expired air with CO2 into the breathing chamber, filters it and sends it outside.

AIR PUMP: the RAE describes it as a device to extract, inject or compress air so there is positive or negative pressure. a very shape simple is achieved with electronic valves, with electronic means and programming.

SUPPORT ELEMENTS: elastic bands around the user's head (7s)

FILTERS: prevent harmful or toxic particles and viruses, bacteria and other pathogenic elements from affecting the user. In a preferred embodiment, the filters will be replaceable and/or easily replaceable. In a preferred embodiment, the filters will be HEPA filters with an efficiency of 99.95%.

DISINFECTION MEANS BY PHYSICAL AND/OR CHEMICAL METHODS: disinfection is a process whose objective is to eliminate pathogenic microorganisms from surfaces and objects. The agents that we use for this are called antiseptics, when they act on living beings, and disinfectants, when they act on inanimate objects. In other words, they have the same objective, but their indication is different, mainly due to the toxicity they could cause on people. These agents can also act in two different ways: killing microorganisms or inhibiting their growth. Disinfection can be achieved by different methods that we group into two: physical methods and chemical methods. Physical methods are those that use physical variables, such as temperature and ultraviolet radiation, to achieve the disinfecting effect. Within this group we include: thermal disinfection, ultraviolet radiation disinfection, ultrasound disinfection. Chemical methods are those in which we apply different chemical substances for a certain time to achieve the disinfectant effect. These methods, furthermore, can be used independently or associated with heat application processes, thus being known as thermochemical disinfection. Depending on how we apply the disinfectant or antiseptic, we have different methods: spraying, lotion, immersion.

MECHANICAL ELEMENTS; examples that do not limit the inclusion of others: non-return gas valve, flow regulating valve, switches, hinge, etc.

ELECTRONIC MEDIA: Important are the electronic control media with different types of sensors and/or receivers and/or activators and/or actuators: chips, cards to store and process data, programmable motherboard, peltier cell, etc.

ELECTRICAL MEANS: battery, motor, electrical resistance, etc.

18. WINDOW. The window type (5) fulfills the function of opening for different purposes, drinking, eating, connecting medical means, allowing the function of the sense organs (sight, hearing, taste), opening to ventilate, allowing a part of the body of the user access to the outside; To maintain sanitary safety, it is advisable to interpose a barrier of filtered air. The window and the cover or window panes can be of any shape and type such as: a folding pane, a sliding pane, a pane, a pivoting pane. Examples: opening a practicable window to eat and drink, wound care and so on. There may be a window in any PPE (mask, goggles, cap). The opening in the glasses where the lenses are attached is considered as a window (herein). 19. AIR INTAKE: The air intake is not considered a window, it is an opening with the function of allowing air to enter the air flow devices (fan, air pump, etc.). It is true that through the open window through which you eat you can also breathe and the same is true if there is a window for the nostrils.

20. COMPARTMENTS. Deposit type or delimited area type to include a memory element or to protect a component. There are special compartments such as a spiral duct with a mirror-like internal face where UVC or another means of treating the air is included. Another example is the tanks for chemical disinfection media with valves and spray media; compressed air or vacuum compartment. The propeller itself is in a compartment to the case.

21. ADDITIONAL ELEMENT. The supplementary element is a body that houses parts of the invention, facilitating its distribution and distributing volume and weight.; the supplementary element already has its own function and an aesthetic that makes it recognizable: the necklace, the cap, the button panel, the belt and others with a similar function are valid as supplementary elements.

Other embodiments of the invention relate to glasses and caps.

DESCRIPTION OF THE DRAWINGS

For a better understanding of this description, a series of drawings are attached in which the mask is schematically represented in a preferred embodiment, detailing below and with reference to the same drawings a description of its constitution.

Figure 1: simplified diagram of the open circuit of an embodiment of the filtered air flow dispenser and suction device.

Figure 2: simplified diagram of the closed circuit of an embodiment of the filtered air flow dispensing and suction device.

Figure 3: simplified diagram of two open and series circuits of an embodiment of a filtered air flow dispensing and suction device

Figure 4: side perspective view of an embodiment of the filtered air flow dispenser and suction device

Figure 5: perspective view of the figure 4 model superimposed on an FFP2 mask on the user's face.

Figure 6: detail perspective view of figure 5

Figure 7: side perspective view of an embodiment of the filtered air flow dispensing and suction device with a window.

Figure 8 : example of realization of glasses with windows and dispenser and aspirator of a flow of filtered air

Figure 9: example of embodiment of head covering type equipment; connected to dispensing device and filtered airflow aspirator of a mask

Figure 10: Example of a kit with a dispensing device and cap-type filtered air flow aspirator

Figure 11: example of embodiment of glasses lenses with filtered air flow dispensing and suction function.

Figure 12: simplified diagram of the closed circuit with air intake of an embodiment of the dispenser and aspirator of a flow of filtered air.

Figure 13: Example of embodiment of the filtered air flow dispensing and suction device combined with goggles, disposable nose filter and face mask with a window covered by a disposable or reusable mask.

PREFERRED EMBODIMENTS OF THE INVENTION

Next, an embodiment of the invention is briefly described, as an illustrative and non-limiting example of the latter. Throughout the description and the claims the word "comprise" and its variants are not intended to exclude other technical characteristics, additives, components or steps. Other objects, advantages and features of the invention will be apparent to those skilled in the art in part from the description and in part from the practice of the invention. The following examples and drawings are provided by way of illustration, and are not intended to limit the present invention. Furthermore, the present invention covers all possible combinations of particular and preferred embodiments indicated herein. In view of the figures and according to the numbering adopted in them, non-limiting examples of embodiment of the invention with a filtered air flow dispenser and suction device can be observed.

Figures 1, 2 and 3 represent circuit diagrams of the invention that do not limit the combination of the elements that constitute them or the incorporation of other mechanical and/or electronic means. The most important filter is the one between the air intake (and/or suction holes/slots) and the propeller; there may be other filters arranged to prevent dirt and contamination.

There is the possibility of other mechanical and electronic means arranged in the circuit such as valves, sensors, etc.

There may be a single motor driving the two circuits by a twin-screw mechanism, or two or more motors, at least one for each circuit. The function of the propeller drive motor can be replaced by a manual pneumatic balloon-type mechanical device.

Open circuit: (figure 1) from the air intake (2t) and/or suction holes (2b), suction ducts (the suction duct is not represented in this figure due to the proximity between the air intake, filter and storage compartment). propeller), filters (3a), propeller (3h) driven by motor (3m) (or equivalent means of air delivery), expulsion ducts (2c) and expulsion holes (2a).

Closed circuit: (figure 2) from suction holes (2b), suction ducts (2d), filters (3a), propeller (3h) driven by motor (3m) (or equivalent means of air delivery), ducts ( 2c) ejection and ejection holes (2a). Filtered air screen (4) is created. The closed circuit by itself forms a filtered air flow dispensing and suction device: an air intake (2t) can be attached to it as in figures 3 and 12; This intake has a manual or electronic/automatic flow regulator. Diffusion holes and/or slots can be included to create filtered air curtain (in this case it would be a combined circuit, part closed and part open).

Figure 3 represents two open circuits in series that create a screen of filtered air (4) over a window (5). The valve (v1) controls the air inlet through (2b) and the valve (v2) controls the air inlet through the air intake (2t); the whole is controlled and regulated automatically or manually. (3a) corresponds to the filter, (3h) is a propeller driven by (3m) motor. The "i" in (2ai), (2bi), (2ci), (2di), (3ai), (3mi), (3hi) only represents elements of a second circuit, the number and first letter being valid for the claims.

The preferred invention of our utility model U202130311 ( figure 4,5,6 and 7 ) is structured from a body (1), which in this case forms a network that configures a polyhedral, which can also be of the cup or hemispherical, for example.

Figures 4, 5 and 6 represent the invention coupled to an FFP2 mask in which there are two open circuits. The device is structured from a support structure (1), which in this case forms a network that configures a polyhedron that can also be of another shape (example: cup or hemispherical). The support structure (1) houses a plurality of holes and/or slots, some of which are responsible for expelling (2a) filtered air, others for sucking in (2bi) the air expelled by (2a) already filtered by filter (3a) arranged in the support (1); there is a filter (3a) at the level of the air intake of at least one impulsion propeller driven by a motor and/or an air pump located on a support (1); Another filter (3ai) is between the suction duct and an air impeller propeller (3hi) driven by a motor (3mi). The motor with propeller and/or air pump is powered by a battery powered by electrical connection, micro-USB type or equivalent, located in the support structure (1); there may be wireless recharging. The support (1) is attached to the face, completely covering the hygienic, surgical or FFP2 mask, which in turn protects the mouth and nose, remaining completely adherent to the skin and stabilized by the pressure exerted by one or more elastic cords that surround the head. and/or the ears, obtaining an optimal seal (if possible perfect).

The filtered and diffused air through the holes of the dispenser covers the area and is maintained around it as there is an aspiration through the suction holes which are arranged to maintain a curtain of filtered air around the mask and are also installed in areas where it is more likely to have air leaks (which may contain pathogens) which is usually around the entire outside perimeter of the mask and in particular on the sides and near the nose. Another model can be developed to put a mask on top of it.

In Figure 7 we can see that an opening window (5) is attached to the support structure (1).

The front window (5) has a filtered air screen (4) (figure 3) that is activated when the window is opened and prevents the entry of contaminated air; the filtered air circuit is of the figure 3 type. A propeller driven by a motor propels the filtered air through the expulsion ducts (2c) that reach the expulsion holes and/or slots (2a) on one side of the window (5) ; the air expelled by (2a) towards (2bi) is sucked in through the suction holes and/or slots (2bi) on the opposite side of the window (5), circulates through suction ducts (2di), is filtered (3ai) and is expelled (2ai). There is a filter between holes and/or suction slots and the propeller; other models can include holes and/or slots also on the sides of the window or different combinations between the expulsion and suction holes in order to create a filtered air screen. In this circuit, the air, before and/or after being filtered, can be enriched with bactericidal and antiviral substances (essential oils) or with ions that destroy viruses, bacteria and pathogenic agents without being harmful to the user or the air can pass through a spiral duct where there is UV. (ultraviolet.). Any method can be used to improve the capabilities (bactericidal, virus inactivating and pathogenic agent) of the air curtain-screen (4). The combinations according to aerodynamic criteria are multiple, and it will facilitate the isolation between relatives with excess occupation in a dwelling.

Figure 8 shows an embodiment of glasses that comprise the screen of filtered air (4) described in Figure 2. I point out that the frames where lenses are included are considered in this report as "windows"; an air screen on any perimeter or between sides where there are holes and/or slots for expulsion and holes and/or slots for suction.This model includes a closed filtered air circuit including an air intake (2t).In this closed circuit the air, after being filtered, can be enriched with bactericidal and antiviral substances (essential oils) or with ions that destroy viruses, bacteria and pathogens (cold plasma disinfection; led_UV ) without being harmful to the user. air screen in the lens frame (corresponding to a window): it is air filtered from (2a) to (2b); in front of the air screen of the lens frame there is another air screen filtered from (2a) in and the goggle body towards (2b) on the goggle body; there is a diffuse air curtain through holes and/or slots (2ad) which in this case receive filtered air from the same main duct (2c) that feeds (2a). The inclusion of (2ad) in the drawing has been simplified, but they can be distributed throughout the body of the glasses. It can be used with or without glasses. If there are lenses, there is an air screen in front and behind the lenses that has an anti-fog effect. In said embodiment, the structure (1) may be materialized in a one-piece body, or else, the pins and the connecting piece being manufactured separately and joined by "clipped" tongue-and-groove or an equivalent technical solution.

Figure 9 shows an embodiment of the filtered air flow dispensing and suction device of the mesh head cover type: it is an embodiment that is not included in model U2022130311. In the model U202130311 the supplementary elements are not included. The expulsion holes and the suction slots that form an air cap that protects the user from harboring pathogenic microorganisms that can infect him by direct contact are observed. This invention has the objective of allowing a feeling of freedom in any activity in a situation of moderate risk and in jobs in which protection has to be worn for a long time. It may include a filtered airflow aspirator and dispensing device or may be powered by the airflow from the mask or goggles or other PPE with such a device. (7s) are fastening means; (2w) are the connections with the filtered air flow dispensing and suction device of the mask.

Figure 10 shows an embodiment of the cap with a device, also with its filtered air screen and diffused air curtain by (2ad). On the side, the air goes from (2a) to (2b) without hitting the skin and forms an area with an air curtain between two adjacent sides. The cap can have ear flaps with a window and an air screen that can be useful in jobs where there are harmful dusts and good hearing is needed.

Figure 11: Example of making goggle lenses for a filtered air dispenser and suction device. They can be two lenses (8a, 8b) without graduation with a slot in relation to the field of vision. Between the lenses there is a flow of filtered air that covers the slots thanks to the diffusion function alone or to the two combined functions of expulsion and suction. This air flow is produced by the air circuit of the goggles that have at least one filter, a battery-powered motor and an impeller. In other models, the filtered air flow depends on the elements of the mask or other PPE. The lens can be single with slots, ducts and holes.

Figure 12: simplified diagram of the closed circuit with air intake of an embodiment of the dispenser and aspirator of a flow of filtered air.

Figure 13: Example of embodiment of the filtered air flow dispensing and suction device combined with goggles, replaceable nose filter (7f) and mask window covered by a disposable or reusable mask. This preferred embodiment has an important aspect in the individual nose filter that allows eating and drinking without breathing through the mouth. The filtered air goes from (2a) to (2b)

The invention object of this application may have different joints, fittings and closures, always respecting the objectives of this utility model. The essentiality of this invention does not alter variations in materials, shape, size and dimensions and arrangement of the component elements included or included and not listed because they are obvious, described in a non-limiting manner, this being sufficient to proceed with its reproduction. In general, any other detail, accessory or secondary, will be subject to variation as long as this does not alter, change or modify the essence of the invention.

Claims (14)

1. Personal protective equipment with means of attachment to the user's head characterized by a branched tubular support with suction holes and/or slots and expulsion holes and/or slots; said equipment protects the head from pathogens and contaminants thanks to a filtered air flow created by a filtered air flow dispensing and suction device; said device shares with the equipment the tubular support structure that houses a plurality of holes and/or slots, some to expel filtered air and others to suck in filtered air: the holes and/or slots (2a) for expulsion are the termination of some ducts by which filtered air is driven by filters arranged in the support (1); the suction holes and/or slots (2b) are the beginning of ducts that suck filtered air expelled through the holes and/or slots (2a) towards (2b); there is a filter at the level of the air intake of at least one fan and/or air pump located on the support (1); there is a filter in the suction ducts (2d) before the impulsion propeller (3h) with its motor (3m). The fan (3m) with (3h) and/or air pump is powered by a battery powered by electrical connection, micro-USB type or equivalent, located in the support structure (1). 2. Equipment according to claim 1 that includes a supplementary element that can be a collar, cap, buttons, belt; At least one element can be installed in the supplementary element, among which: battery, filter, fan, disinfection means. 3. Equipment according to any claim 1 and 2, characterized in that it includes at least one window; 4. Equipment according to any claim 1, 2 and 3, characterized in that the window (5) contains a filtered air screen (4) that is formed with filtered air that circulates through the expulsion duct (2c) to holes and/or slots (2a ) ejection in the window (5); the filtered air is expelled through (2a) towards suction holes and/or slots (2b), circulates through the suction duct to the internal filter (3a) and impulsion propeller (3h) driven by a motor (3m). 5. - Equipment according to any of the preceding claims, characterized in that there are holes and/or slots for suction of unfiltered air. 6. - Equipment according to any of claims 1, 2, 3 and 4, characterized in that there are holes and/or diffusion slots that direct the air totally or partially in a different direction than that of absorption through the holes and/or slots of aspiration 7. - Equipment according to any of claims 3 and 4, characterized in that the window it is practicable and includes at least one mobile leaf. 8. - Equipment according to any of the preceding claims wherein the filters are replaceable. 9. Equipment according to any of claims 1, 2 and 8, wherein the filters are HEPA filters. 10. - Equipment according to any of the preceding claims, characterized in that it comprises means by bactericidal and antiviral and antipathogenic chemical methods or ions that destroy viruses, bacteria and pathogens; example is cetylpyridinium chloride (CPC). 11. - Equipment according to any of the preceding claims, characterized in that it has means for physical disinfection methods such as ultraviolet (UV-C) or silver thread fabrics. peltier cell. 12.

Equipment according to any of the preceding claims, characterized in that it has means to heat or cool the driven air: peltier cell and electrical resistors 13. - Equipment according to claim 1.2, characterized in that there is at least one respiration fan 14. Equipment according to claim 1, wherein the support structure (1) is shaped to protect the hair or scalp area.