WO2021211022A1

WO2021211022A1 - Respiratory mask with medical material or odor for inhalation

Info

Publication number: WO2021211022A1
Application number: PCT/SA2020/050006
Authority: WO
Inventors: Khalid ALMALKI
Original assignee: Almalki Khalid
Priority date: 2020-04-16
Filing date: 2020-04-28
Publication date: 2021-10-21
Also published as: SA120410582B1

Abstract

This respiratory mask tightly covers mouth and nose. It consists of at least two layers of medical fabric. It can also be manufactured with N95 mask technology. The mask features a breather with a special cap. By opening this cap, air reaches the mask wearer through the breather. A tablet, covering the breather opening tightly, is placed inside the aforementioned breather. The tablet is saturated with medical material or odor for inhalation. The tablet allows air to pass through it. By controlling the slots on the breather cap, air can be allowed to pass through the tablet for the mask wearer. Medical or odor tablets are placed in their own tight packets. After opening the packets, the tablet is placed inside the breather, and then the breather cap is installed so that the user can inhale the medical material or odor as long as the user wears the mask.

Description

Respiratory mask with medical material or odor for inhalation DESCRIPTION l ;

The present invention is related to a respiratory mask that covers mouth and nose and consists of two or more medical fabric layers. One or more of these layers filters viruses, bacteria, other germs and dust. They can also be manufactured with N95 mask technology. The outer layer of the mask is impermeable while the inner layer - towards the user - is absorbent to liquids. The mask has fabric straps that are connected to both ends of the mask and tied behind the wearer's head, two elastic straps on both sides of the mask; each one encircles the wearer's ear, or elastic straps that encircle the wearer's head. It contains a flexible metal nasal bridge to maintain the position of mask on the nose. When pressing the nasal bridge with two fingers towards the sides of nose, this helps the mask fit better around the nose.

The mask, described in this invention, features a breather. This breather contains a tablet that tightly covers the breather opening. The tablet allows filtered air to reach to the wearer through the breather. The tablet is saturated with a medical material or odor. The breather has a cap that can be opened and closed. The tablet contains a medical material or odor for inhalation. (The tablet can be made of cotton, fabric, special paper, etc.). The breather cap controls whether air can pass through the tablet to the respiratory system of the mask wearer.

One of the closest technological cases is described in the United States Patent Application 20050081856, which describes a mask for mouth and nose with elastic straps on both sides that allow the mask to be fixed on the wearer’s face by encircling the elastic straps behind the wearer’s ear. It is a type of fabric masks featured a flexible metal bridge to better fit mask on the nose. It has flexible press-to-crack aromatic capsules on both sides of the bridge. The fragrance can reach an absorbent fabric behind the capsules. This fabric keeps the fragrance to prevent it from spilling on the mask. The defect of this type of masks is that any mechanical pressing on the aromatic capsules may crack it before wearing the mask. This is common in handling and shipping. Thus, the fragrance emanates early before wearing the mask. The fragrance can also flow onto the mask and make it moist, which may cause skin allergy for those who have skin allergies to such liquids. This mask also does not allow stop inhalation of odor, as it continues to be inhaled until the mask is removed. Our invention has a breather, in which a fabric tablet containing a medical material or odor that can be replaced at any time, disposed of, or not to be used at all, is placed. This breather can be opened so that the air passes through fabric containing the medical material or odor. The air intakes of the breather can also be closed to stop inhaling the medical material or odor. Our invention differs from the previous technology in that it can use any medical material or odor with the mask itself. Unlike the previous described technology that contains fixed odor that can only be replaced by replacing the mask itself, our invention can also be manufactured with N95 mask technology to filter out bacteria and small viruses.

Among previous technological cases, the United States Patent Application 20060107959, which describes the a mask similar to the one described in the technology above. It has a capsule in the center of the mask in front of the user’s mouth and nose. This capsule can be broken to release the scent or fragrance (liquid or solid form). The pocket in the capsule is glued to the mask. The glue may contain materials that is unpleasant for inhalation. In addition, the liquid materials may flow on the mask and touch the user's face, causing a skin allergy to the user. The breakable capsules may be broken or crushed under any mechanical pressure during shipping and storage. Thus, the fragrance is released from the capsules before wearing the mask. In our invention, the medical material or odor is contained in a special envelope that is not connected to the mask. The envelope shall be opened before use, and then the tablet containing the medicinal material or odor is fixed in its breather. The medical material or odor tablet does not touch the user’s face because there is a barrier between them. The fragrance in the previous technology is fixed in the mask and can only be replaced by replacing the mask itself with one that contains another fragrance unlike the case in our invention. The mask in our invention can be used without any medical material or odor. User can choose any different medical material or odor with the same mask without need to replace that mask with another. Our invention can also be manufactured with N95 mask technology to filter out bacteria and small viruses.

Among the previous technological cases is the United States Patent 10486001 that describes a respiratory mask with folds. On wearing the mask, it is stretched from top to bottom to open the folds. Between the folds, there are aromatic objects. When the folds are opened, the cap is removed from the aromatic objects and the fragrance is released. As indicated in the above technologies, the objects carrying the odor are more likely to evaporate the odor from the outside part of the mask than being inhaled by the mask wearer. The odor of the mask can't be changed and the mask can’t be used without any odor unlike the mask described in our invention. Our invention has a breather in which medical or odor tablets are placed. This medical material or odor is inhaled directly from the breather. You can replace the medical material or odor by any other various types or even use the mask without any medical material or odor. Our invention can also be manufactured with N95 mask technology to filter out bacteria and small viruses.

Among the previous technological cases is the United States Patent 5538013 that describes a mask for mouth and nose with aromatic fabric materials independent from the mask. These materials can be fixed in the mask from the inside in front of the mouth and nose in three different ways described in the invention. These ways are either by pasting the fabric containing the odor onto the mask from the inside, by having a perforated base on which the odor is fixed by glue, or by having a pocket in which the fabric containing the odor is inserted. This pocket is a perforated so that the air passes through it and the odor. Our invention differs from this invention in that the pocket, the holder or odor tablet mentioned in the previous technology is fixed with adhesive (glue) or Velcro®. The inhalation of the used glue (a glue is required to fix Velcro® in the mask) by the user may have harmful effect on health. Our invention provides an advantage that is not in the previous technology. Our invention advantage is that the amount of air passing through the breather - where the medical fabric or odor is placed - can be controlled. The breather neck and cap in our invention contain slots. Where the slots on cap match slots on the brather neck, a greater amount of air will pass through the medical fabric or odor to the user's respiratory system. By turning the cap, slots on the cap mismatch slots on the breather neck and the amount of air passing through the fabric in the breather is reduced. In the previous described technology, it is not possible to control the amount of air passing through the aromatic fabric and the user must inhale the entire amount even if the concentration and amount of material is not suitable for the user. Our invention can also be manufactured with N95 mask technology to filter out bacteria and small viruses.

Among the previous technological cases, the United States Patent 9629401, which describes a mask for mouth and nose, on which another mask containing a medical material or odor is placed. This mask containing medical material or oder can be worn or removed. It roughly covers the same size of the original mask. The additional mask - with its large size - consumes large quantities of medical material or odor to cover the fabric, which results in wasting materials. The medical material or odor volatilizes from the external side because there is no external protector that prevents volatilization of the medical materials particularly in the surrounding environment. In addition, the original mask, which touches mouth and nose, may absorb a lot amount of medical material - in particular - before it reaches someone inhaling it. In our invention, the breather in which the tablets of the medical material or odor are placed does blocks the mask fabric as it is opened from both ends. It is controlled through the breather cap. The use of small tablets does not waste medical materials or odor. The breather cap prevents the evaporation of medical material or odor to the external environment as much as possible and concentrates the medical material or odor for inhalation by the user. Our invention can also be manufactured with N95 mask technology to filter out bacteria and small viruses.

United States Patent 5243708 shows a mask for the nose only with a bottom extra portion gripped by mouth of the user. The mask contains odors in a form of side line and cross line that are intersect in front of the nose. Both lines contain higher concentration of odor. The mask also contains a tool making sounds. This tool can be turned on to make sounds. This mask is often used when changing baby diapers. The sound here is to distract the child and the scent is to avoid inhaling unpleaant odors while changing the diaper. This technology differs from our invention in that this mask is only for the nose and that odors are integrated into the mask, and the mask can't be used without the odor. In addition, odor can't be replaced for the same mask with another odor. In addition, the mask, described in the previous technology, does not cover the mouth. Our invention can also be manufactured with N95 mask technology to filter out bacteria and small viruses.

One of the previous technological cases is the United States Patent Application 20030127102 that describes a medical mask used for hospital inpatients. A medical gases supply tube is connected to this mask. This mask is characterized by graphic figures with an odor emitted with the medical gas supplied to the mask wearer. This type of masks requires the wearer to remain in place to be connected with the medical gas of the mask and does not allow him to move and walk on the roads or wander in the workplace, home or other places. The aromatic figures in the mask are fixed and cannot be removed and the odor can’t be replaced with another except by replacing the mask itself. Our invention can also be manufactured with N95mask technology to filter out bacteria and small viruses.

One of the previous technological cases is the United States Patent Application 20170021063, which describes a guard that protect of unwanted odors that is attached to the common medical mask. This guard is made of five layers. The first outer layer is far from the mask and on which the guard will be fixed. Between the second and third layers is coffee ground while between the third and fourth layers are activated charcoal and sodium bicarbonate. The outer side of the fifth layer has adhesive to attach the guard to the medical mask. In this invention, coffee ground - in addition to their ability to absorb unwanted odors - provides a pleasant odor to the mask wearer. This document also mentioned the use of essential oil beadlet as a substitute for coffee. This expands the area of the aromatic surface, fixes the coffee or odor in the guard used in the mask. Coffee or odor is indispensable. Activated charcoal and sodium bicarbonate with oil beadlet may lead to absorption of aromatic scents from the beadlets and thus not benefiting from them. This mask also differs from our invention in that it can't use medical materials that can be inhaled and it is not possible to replace the medical material with an odor or vice versa, or to replace the odor with another one, except by replacing the mask itself. It is clear from this document that the invention relates to a guard that is adhered to the mask and is not itself a mask. Our invention can also be manufactured with N95mask technology to filter out bacteria and small viruses.

One of the other technological cases is the United States Patent Application 20120144556 which describes a mask for eyes and forehead and does not cover the nose and mouth. The mask has a pocket with in which a cooling gel can be placed to cool the forehead and eyes. The mask has a scent carrier. This carrier has an aperture that controls the wideness of the scent slot to control the amount of scent being released. It is worth noting that the carrier can be attached to other materials - as indicated in the Patent Application - such as toys, pillows, etc. It is noted that the scent in this technology is released outside away of the face towards the environment surrounding the mask wearer because the mask does not cover the nose and also because it is possible to install scent carrier on any other material and not only on the face mask. Thus, this mask is completely different from our invention in which the breather of medical material or odor is an essential part of the mask. The medical material or odor is spread inside the mask towards the face of the wearer and not to the external environment. In the technology described here, the scent carrier can’t be used for medical material for inhalation because the materials are diluted from the carrier to the external environment, and the mask does not cover the mouth and nose (it covers eyes and forehead only). Thus, the wearer cannot therapeutically use the mask prescribed in the previous technology. Our invention can also be manufactured with N95 mask technology to filter out bacteria and small viruses.

UI M KAI DESCRIPTION OF THF, TNVF.NTTON: This invention is related to a respiratory mask that tightly covers mouth and nose together. It enables its wearer to inhale medical material or odor without touching the user's skin. It can also be manufactured with N95 mask technology to better filter out bacteria and dust. The mask has fabric straps that are connected to both ends of the mask and tied behind the wearer's head, two elastic straps on both sides of the mask; each one encircles the wearer's ear, or elastic straps that encircle the wearer's head. It contains a flexible metal nasal bridge to maintain the position of mask on the nose. When pressing the nasal bridge with two fingers towards the sides of nose, this helps the mask fit better around the nose.

The mask in our invention consists of two layers - at least - that are air permeable and filtering. The mask can also be manufactured with N95 technology. The layers are made of non-woven fabric , which is often made of polymer (including, but not limited to, Polypropylene). Pores of fabric used to manufacture the mask can be controlled to prevent the passage of dust, viruses, bacteria, and other airborne pollutants. The outer layer of the mask (which is far from the face of the mask wearer) is made of a fabric that does not allow liquids to pass through, including droplets produced by sneezing or coughing of another person close to the mask wearer. The mask also protects the user from the spray of various bodily fluids (e.g. Blood, saliva, etc.) in the event that the mask is used by health practitioners in places where there are patients, hospital emergency, ambulance or places where there are inpatients. The inner layer - touching the user's face - is made of fabric that absorbs fluids such as droplets produced by coughing, sneezing, or even saliva of the mask user. All layers are made of fabric that allows air to pass through it, and filters out bacteria, viruses, dust, etc.

The mask in our invention features a breather on one side of the mask or in front of the mouth and nose. This breather looks like a neck of a water bottle with screw cap which rotates to close and open it. This breather has a circular edge surrounding it from the base side for fixing in the inner and outer layers of the mask. The breather is open from the inside and has outside slots on its sides, which allow air to pass through the slots when opening the cap. The outer opening of the breather is covered by a cap that can be removed completely and installed again on the breather. The inner part of the breather has a mesh that allows to keep what is placed inside the breather and prevents direct contact between what is inside the breather and skin of the mask wearer.

The breather cap has slots on its side circumference and similar slots on the circumference of the breather neck at the place where the cap is installed. The breather neck has a projecting circular bottom ring near the base, and another ring sitting slightly above it, which is not connected at two places. Inside the cap, there are two small projectors that can pass through the two disconnected ring slots when the cap is fixed to the breather neck. The cap is rotated to be securely fixed to the breather neck. When cap slots parallel with the breather neck slots, the air can pass through the breather. The more the cap rotates on the breather neck, the narrower air slots are, until they are completely closed.

The breather can hold a cotton tablet (or any other suitable fabric tablet) that tightly fills the breather opening so that it can filter out air which passes through and at the same time it holds a medical material or odor in its fabric. These tablets are saturated with different medical materials or odors for inhalation (each aromatic tablet has its own odor and each medical tablet has its own medical drug). Each tablet is individually wrapped in a sealed packet. When the mask user wants to use a specific medical material or odor, they tear off the packet, extract the tablet, open the mask breather cap, place the tablet in the breather, close the cap by rotating it so that they control the wideness of opening where air enters the breather and then user wears the mask and breathes naturally. The breather ventilation holes can be completely closed if the breather is empty of odor or medical tablets. The breather slots can also be closed if the user does not want to inhale the medical material or odor placed in the breather.

HR DESCRIPTION OF THF, DRAWINGS:

The structures, details and mechanism of the invention are better illustrated by drawings. A list of figures used to clarify and explain the structures and mechanism of the invention is below:

Figure (1): General shape of the mask front showing its outside surface and the breather.

Figure (2): Profile of the mask showing its outside surface and the breather shape.

Figure (3): General shape of the mask inside showing the inner surface and the breather inside the mask.

Figure (4): Detailed structures of the breather and the tablet containing the medical material or odor.

Figure (5): Description of how to install the cap on the breather.

Figure (6): Extracting the odor or medical tablet from its packet.

Figure (7): How to put the odor or medical tablet in the breather.

Figure (8): How to close the breather after placing the odor or medical tablet.

Figure (9): Shape of the breather cap with full ventilation holes.

Figure (10): Shape of the breather cap with partial ventilation holes.

Figure (11): Shape of the breather cap with ventilation holes closed.

Figure (12): Shape of the mask when the user wears it.

Detailed description:

Figures (1), (2), (3) and (12) show the respiratory mask (11) that covers mouth and nose of the user (40). The mask has an inner layer (13) touching the mask (11) wearer's face (40), and an outer layer (12) facing the external environment of the mask (11) user (40). The mask may consist of more than two layers. The breather (20) of the medical material or odor appears on the outer layer (12). Figure (3) shows the breather (20) shape from the mask inside (11). In the mask inside (11), there is a protective mesh (25) at the bottom of the breather (20), which prevents contact with the skin of the mask (11) wearer (40). The mask has a fixation tool on its wearer's face (40). This fixation tool can be an elastic strap (14) on both sides of the mask (11). Each elastic strap (14) encircles the wearer's ear. It may be one (or more) elastic strap that connects the sides of the mask (11) and encircles the mask (11) wearer's head, or fabric straps tied behind the user’s head. On the outer top of the mask (11), there is a flexible metal bridge (15). This bridge (15) is located on the bridge of nose of the mask (11) wearer. When pressing the bridge (15) with two fingers towards the sides of nose of mask wearer (11), this helps the mask (11) fit better around the nose.

The mask (11) consists of at least two fabric layers, each of which is made of non-woven fabric that is air-permeable and air filtering to prevent the penetration of 95% of bacteria, viruses, other airborne germs and dust particles into the mask (i.e. It block them away from the mask user (40)). In addition, the outer layer (12) features a fabric that is impermeable of liquids from the external environment inside the mask, such as coughing, sneezing, saliva, blood droplets, contaminated liquids, etc. In addition, fabric of the inner layer (13) absorbs sprays produced by coughing, sneezing and saliva of the mask user (40) to prevent its outflow from the mask to the external environment. Our invention can also be manufactured with N95 mask technology to filter out bacteria and small viruses.

The breather (20) is used to keep tablets (24) saturated with a medical material or odor for inhalation. Figure (3) shows detailed structure of the breather (20) with the medical or odor tablet. The breather (2) is a cylindrical neck (26) with 2 open ends and a cap (21) that can be completely removed or installed on the neck (26). The circular base of the breather (11) consisting of two circles with the same diameter and thickness connects to the neck (26). The upper circle (31) appears on the surface of the outer layer (12) of the mask (11), and the lower circle (32) appears on the surface of the inner layer (13) of the mask (11). Between the upper (31) and lower (32) circles, the 3 layers of the mask (11) meet so that the breather remains emptied of the layers of the mask (11) (i.e. open from two ends).

At the bottom of the breather (20) from the inside and in a place between the upper (31) and the lower (32) circles, there are meshes (25) to keep the tablet (24) away from the mask (11) wearer's face (40). These meshes (25) are fixed in its place.

The breather neck (26) has slots (27) near the top end, where the cap (22) is installed. It is at far end of the upper circle (31). Just below it, there is an incomplete prominent ring (28) surrounding the breather neck. In this incomplete ring (28), there are at least two slots (30). Each slot is of the same dimensions and size of the lock protrusions (34) within the cap (21) (Fig. (4)). The function of those two slots (30) is the passage of lock protrusions (34) inside the cap (21) through them when opening or closing the cap (21). Below the incomplete ring (28), there is a complete ring (29). The function of this ring with the incomplete ring (28) is to form a path for the movement of the lock protrusions (34) within the cap (21).

Figure (4) shows the internal structures of the breather cap (21). The cap (21) has slots (23) on its circumference (22). The cap slots (23) are similar in size and shape to the breather neck slots (27) so that the neck slots (27) and the cap slots (23) are parallel when installing the cap (21) on the breather neck (26). Inside the cap (21), there are lock protrusions (34) which are identical - in size and position - to the slots of the incomplete ring (28) on the breather neck (26). The position of the lock protrusions (34) is close to the open end of the cap (21), topped by slightly prominent circular edge (33) from inside the cap (21). When placing the cap (21) on the breather neck (26), the cap is rotated (either clockwise or counterclockwise) until the lock protrusions (34) reach the slots (30) of the incomplete ring (28). The lock protrusions (34) pass through slots (30) to hit the complete ring (29). While rotating the cap (21), the lock protrusions (34) move in the specified path between the complete ring (29) and the incomplete ring (28) in either direction (clockwise or counterclockwise). This cap movement aims to direct the cap slots (23) to parallel the breather neck slots (27) or to stay away from each other.

As indicated in Figure (5), the odor or medical material tablets for inhalation are individually wrapped in an envelope (35). The odor tablets (24) vary in terms of odor and concentration of odor in each tablet (24). They also may contain mixture of two or more different odors. Tablets (24) may contain medical material for inhalation such as bronchodilators or substances that are used for cold, flu, etc. Tablets (24) may be made of a natural material such as cotton, linen, etc. or they can be made of any synthetic, paper or other fabric. This allows the odor or medical material remain in the fabric for the longest possible period and not to spill or evaporate quickly. After removing the tablet (24) from the envelope (35), the tablet (24) is placed in the breather (20). It is gently pressed with one of fingers (36) (Fig. (6)) to settle in the breather (20) above the fixed mesh

(25) tightly. Air pass only through the tablet. Then, cap (21) is installed in the breather neck (26) as shown in Figure (7) by rotating it as indicated above. After that, the user wears the mask ( 1 ) on their face (40) and breaths normally.

After the lock protrusions (34) is settled in their path between incomplete ring (28) and complete ring (29), the cap (21) is rotated with two fingers (36) (Fig. (7)) - either clockwise or counterclockwise - to have any appropriate modes with regard to concentration of the medical material or odor inhaled through expanding or narrowing air passage slots using the circular movement of the cap (21). When slots (23) of the cap (21) parallel slots (27) of the breather neck

(26), the air will enter into the breather (20) in the largest possible amount through the tablet (24) (Fig. (8)). In the event that it is desirable to reduce air entering into the breather (20) in order to reduce concentration of medical material or odor - for example - Figure (9) shows a partial opening mode of the breather slots (20). If there is not a tablet (24) in the breather (20), the position of the breather lock (20) as indicated in Figure (10) is done by keeping the cap slots (23) completely mismatch the breather neck slots (27) to prevent entry of air completely.

It is worth noting that the fabric of each layer of masks is made of - including but not limited to - non-woven fabric such as polypropylene (PP) and/or polyethylene terephthalate (PET). The non- woven fabric is often made by melt-blow method (a one-step process in which high-speed air blows the melted thermoplastic resin from the extruder onto a carrier or a capture screen to form a fine, self-bonding fibrous mesh). The products manufactured by this method are used in air and water filters. The fabrics of each layer of the mask may be made of any other suitable materials that provide fine pores that can be controlled in order to prevent the passage of dust, viruses, bacteria and other pathogens. The mask described in this invention may consist of two or more layers depending on the use of the mask. An additional layer containing active charcoal can be added to absorb any unpleasant odors produced by the external environment.

The way of fixing the mask on wearer's face varies as needed. The mask may be made with two elastic straps on both sides of the mask. Each strap encircles the wearer's ear. The mask can be with an one (or more) elastic strap that connects the sides of the mask so that this elastic strap(s) encircles the wearer's head. The mask can be with (two or more on each side of the mask) fabric straps that are tied behind the head of the mask wearer.

The breather may be made of light flexible plastic materials so that it is not broken (due to any mechanical pressure on it) and its fragments do not injure the mask wearer. The cap can be removed and installed in a number of recognized methods, such as screw rotation, pressing, etc. provided that any of the mentioned methods provides a means to control air entry or suspension to the breather.

The mask may be made in many different shapes, e.g. cup, bowl-shaped or rectangular that can be folded or any other shape.

Claims

Protection Claims (Elements)

1- A respiratory mask allows air to pass through its air-permeable layers and prevents passage of dust, viruses, bacteria and other germs. It contains:

- At least 2-ply of fabric air filters that are made of non- woven fabric that allow air to pass and filter out the air passes through them from dust, allergens, viruses, bacteria, and other germs. The outer layer is non-absorbent to spray and liquids. The inner layer (touching the user's face) is absorbent to liquids.

- An appropriate fixing tool for securing the mask on the wearer's face to tightly cover mouth and nose area. It is consists of an elastic strap that connects both sides of the mask to encircle the wearer's head.

- A flexible metal nasal bridge on the nose area to fit the mask better around the nose.

- A cylindrical breather for inhaled material, which penetrates the layers of the mask and is provided with a cap on its outer end. The breather is open from the inner side facing the mask wearer. Just before the inner end, there is a mesh that keeps materials inside the breather away from the skin of the mask wearer. The cylindrical cap neck and the cylindrical breather neck have identical slots on each of them so that the slots parallel when the cap is rotated or completely block when it is rotated a quarter of a turn.

- A volatile respiratory material on a tablet made of absorbent fabric that holds a respiratory material and allows filtered air to pass through it. The fabric tablets containing volatile respiratory materials for use inside the breather are of the same circumference as the breather from inside.

2- A respiratory mask like the one indicated in the protection claim (1), where the volatile respiratory material in the fabric tablet is a medical substance to be inhaled.

3- A respiratory mask like the one indicated in the protection claim (1), where the volatile respiratory substance in the fabric tablet is odor.

4- A respiratory mask like the one indicated in the protection claim (1), where the fabric tablets containing volatile respiratory material are individually wrapped; each tablet is wrapped in a tight envelope (packet) until it is used and the tablet is removed from the tight envelope to be placed in the breather connected to the mask.

5- A respiratory mask like the one indicated in the protection claim (1), where the neck of cylindrical breather contains two prominent rings with a distance between them. The lower one is close to the mask and the upper one is incomplete and has at least two small slots.

1 The two upper ring slots face two protrusions inside the cap that can pass through the two slots and move in the path between the upper and lower rings in neck of the cylindrical breather when rotating the cap clockwise or counterclockwise.

6- A respiratory mask like the one indicated in the protection claim (1), where it consists of more than three layers. The additional layers are made byN95 mask technology to purify at least 95% of bacteria, viruses and particles carried in the air.

7- A respiratory mask like the one indicated in the protection claim (1), where it has an additional layer containing activated carbon (charcoal) to prevent gases and odors from reaching the mask wearer.

8- A respiratory mask like the one indicated in the protection claim (1), where the tool securing the mask on the wearer's face is two elastic rings on both sides of the mask. Each ring encircles the wearer's ear.

9- A respiratory mask like the one indicated in the protection claim (1), where the tool securing the mask on the wearer's face is four fabric straps. Two of them are on each side of the mask. One on each side is tied with its counterpart on the other side behind the wearer’s head.

2