Partitioned PPE masks or respirators

Abstract

A type of surgical mask with compartments that isolate the breath from the wearer's nose and mouth into two separate compartments or volumes.

Description

Technical Field

[0001] This invention relates to face masks for preventing the sharing of breathable air with others. Background Technology

[0002] Typical existing technology masks or respirators cover the face with a single layer of filter material having a limited surface area. See also Figure 1 and Figure 2 Depending on the level of filtration provided by the mask, the filter material may differ in design and material. Typical existing technology masks are uncomfortable to wear due to heat buildup between the mask material and the wearer's skin.

[0003] Heat buildup occurs because the mask's filtration restricts the free flow of air exhaled from the nose or mouth. This creates a warm, humid recirculation of air, which warms the nostrils and face behind the mask and is uncomfortable. This warm, humid recirculated air diffuses across the entire face behind the mask and leaks near the edges, which can cause glasses to fog up or allow viruses to enter and exit through the mask's edges. This feeling of warm, humid breathing around the user's nose is a major reason for dissatisfaction among wearers of existing technology masks, especially those who must wear masks for extended periods, such as medical professionals. Summary of the Invention

[0004] The partitioned surgical mask disclosed herein includes a mask structure or construction having separate or isolated partitions or breathing volumes for separate air volumes for breathing through the user's nose and mouth. This partitioned surgical mask is more comfortable for extended wear because the accumulation of moisture and heat within the partitions generated by the user's breathing is isolated from the user's nose, which is more sensitive to warmth and moisture. Furthermore, the larger the surface area near the air volume that seals against the user's face, the less restricted the airflow through the mask material, providing faster airflow and less heat and moisture accumulation. Heat exhausted into the controlled volume leaves the restricted volume with the exhausted air, and the breathing process through the nose is replaced by ambient air from outside the controlled mask volume. Although the mask material restricts airflow to filter harmful substances carried in the air, the additional material and increased surface area dedicated to the controlled air exchange volume means faster airflow and less heat accumulation. Comfort is also improved by preventing exhausted air from flowing back onto the wearer's skin. The mask according to this disclosure can filter breath from the user's nose and the user's mouth separately. All aspects can be embodied in masks that have an oral respiratory barrier and a nasal respiratory volume attached to the oral respiratory barrier, wherein the nasal respiratory volume can be used for breathing through the nostrils.

[0005] Many advantages and features of the invention will become apparent from the following detailed description of the invention and its embodiments, from the claims and drawings. Attached Figure Description

[0006] Figures 1 to 2 The prior art mask is shown, in which the combined breathing volume or breathing partition of the nose and mouth allows for the recirculation of warm and humid air 1A due to the individual compartments or individual plates 1 of the filter medium.

[0007] Figures 3A to 3C A front view of a first embodiment incorporating various aspects of this disclosure is shown;

[0008] Figure 4 A side view of a second embodiment of a partitioned face mask according to this specification is shown, illustrating separate nasal and oral breathing volumes or breathing partitions.

[0009] Figure 5 A side perspective view of the second embodiment is shown, wherein the airflow through the isolated partition walls 2 and 3 is indicated by arrows 9 at or around the isolated partition walls 2 and 3;

[0010] Figure 6 A side perspective view of the second embodiment is shown, which shows the isolated nasal breathing partition wall 3 and oral breathing partition wall 2 placed on the user's nose and mouth, respectively.

[0011] Figures 7A to 7B A second embodiment is shown, which includes a spacer 25 positioned between the nasal breathing partition wall 3 and the oral breathing partition wall 2 to create an air gap;

[0012] Figures 8A to 8B Various views of a first version of the second embodiment are shown, which has a first nasal breathing sideplate and a second nasal breathing sideplate 35 extending only along a portion of the top edge of the oral breathing barrier 22, and show that the nasal breathing volume 3 can be isolated from the oral breathing volume 2 and used independently of or with the oral breathing volume 2. Figure 1 Use existing technology masks together;

[0013] Figures 9A to 9B Various views of a second version of the second embodiment are shown, which has a first nasal breathing sideplate and a second nasal breathing sideplate 35 extending along the entire top edge of the oral breathing barrier 22, and again show that the nasal breathing volume 3 can be isolated from the oral breathing volume 2 and used independently of or with the oral breathing volume 2. Figure 1 Use existing technology masks together;

[0014] Figure 10A third embodiment is shown, which is worn by a user to direct breaths from the user's nose and mouth into the nasal breathing volume 3 and the oral breathing volume 2, respectively.

[0015] Figure 11 A front view of the third embodiment is shown, and an oral breathing barrier 222 forming an oral breathing volume 22 and a first nasal breathing volume plate 310 are shown.

[0016] Figure 12 A side view of the third embodiment is shown, which illustrates the nasal breathing volume 33 and the oral breathing volume 22, as well as the connection between the oral breathing volume 22 and the lower portion of the oral breathing barrier 222.

[0017] Figure 13 A rear view of the third embodiment is shown, which shows a nasal cavity or nostril 322 formed by a recessed edge 244C of the oral respiratory barrier plate, which is aligned with the collar shape 315 of the first nasal respiratory volume plate 320.

[0018] Figure 14 A left-side view of the third embodiment is shown, illustrating a nasal breathing volume 3 formed by stitching or welding a first nasal breathing volume plate 320 and a second nasal breathing volume plate 330 along longitudinal edges 320A and 330A to form a longitudinal tubular shape for a nasal breathing volume 3. The nasal breathing volume 3 is in fluid communication with a nostril 322 and has an air gap 9 between the rear or outer surface of the first nasal breathing volume plate 320 and the outer front surface of the generally protruding oral breathing barrier 2.

[0019] Figure 15 A preferred cutting pattern for forming the plates of the third embodiment is shown, and pairs of plates, such as the first oral respiratory barrier plate and the second oral respiratory barrier plate 224, can be formed by cutting a single piece (i.e., “X1”) of filter media, which is folded along a line indicated by “fold” and unfolded to form a symmetrical first oral respiratory barrier plate and second oral respiratory barrier plate 224 that are reflected around the edge indicated by “fold”.

[0020] Figure 16 A fourth embodiment is shown, which is worn by a user to direct breaths from the user's nose and mouth to the nasal breathing volume 3 and the oral breathing volume 2, respectively.

[0021] Figure 17 A front view of the fourth embodiment is shown, which shows a first oral respiratory barrier plate and a second oral respiratory barrier plate 224 and a second nasal respiratory volume plate 310.

[0022] Figure 18A left-side view of the fourth embodiment is shown, which illustrates the left oral respiratory barrier plate 224 and the second nasal respiratory volume plate 310.

[0023] Figure 19 A rear view of the fourth embodiment is shown, which shows a first oral respiratory barrier plate and a second oral respiratory barrier plate 224, which are respectively connected to the two sides of the nasal respiratory volume 3 and to the outer surface of the nasal respiratory volume 3. The nasal respiratory volume 3 is formed by the first nasal respiratory volume plate and the second nasal respiratory volume plate 310. An arched plate 228 and a mountain-shaped plate 230 for forming the nostrils 322 are shown. The mountain-shaped plate 230 is sewn or welded to the first oral respiratory barrier plate and the second oral respiratory barrier plate 224 and laterally spans the first oral respiratory barrier plate and the second oral respiratory barrier plate 224. The mountain-shaped plate 230 is sized and dimensional for positioning in front of the user's mouth to further prevent oral breathing from the user from entering the nasal respiratory volume 3.

[0024] Figure 20 Preferred cutting patterns for plates that can form the fourth embodiment are shown, and each matching plate or pair of plates, such as the first oral respiratory barrier plate and the second oral respiratory barrier plate 224 and the first nasal respiratory volume plate and the second nasal respiratory volume plate 310, are indicated by “X2” to indicate that they are paired. It is also shown that the arched plate 228 and the mountain-shaped plate 230 can be formed by cutting a single piece of filter media, which is folded along the line indicated by “fold” and unfolded to form a symmetrical pattern of the arched plate 228 and the mountain-shaped plate 230 reflected around the “fold”.

[0025] Figures 21A to 21C The side view, front view and isometric view of the fifth alternative embodiment worn by the user are shown, which is used to guide breathing from the user's nose and the user's mouth to the nasal breathing volume 3 and the oral breathing volume 2, respectively.

[0026] Figure 22 A side view of the fifth embodiment is shown, illustrating a nasal breathing pattern; and

[0027] Figure 23 A preferred cutting pattern for forming the plate of the fifth embodiment is shown.

[0028] The objects, features, and advantages of the present invention will be more readily understood by referring to the following disclosure and considering the accompanying drawings, wherein reference numerals are used to identify parts in the various views. Detailed Implementation

[0029] The accompanying drawings illustrate an embodiment of a partitioned face mask incorporating various aspects of the invention. The disclosed aspects of the invention can be scaled proportionally or modified for any and all face sizes and shapes. Therefore, the corresponding dimensions of the illustrated features in the disclosed embodiments should not be construed as limiting any aspect of the invention.

[0030] Figures 3A to 10 A variation of a first embodiment of a partitioned face mask is shown, comprising a nasal breathing partition 3 and an oral breathing partition 2, wherein each partition is structured to form a breathing volume for nasal or oral breathing respectively, and to prevent nasal and oral breathing gases, or components thereof, from sharing or exchanging between the partitions. The partitioned face mask described herein is preferably constructed from the filter media and materials of a standard surgical mask, however, it is not limited thereto. A preferred plate for constructing the oral breathing barrier 2 or the nasal breathing partition includes at least one first filter media layer having a particle filtration efficiency (PFE) of at least about 0.1 micrometers. However, it is conceivable to incorporate a relatively rigid filter media, or a rigid structure or material, into the filter media of the nasal breathing partition 3 or the oral breathing partition 2 to extend the surface of the partitioned filter media away from the wearer's nose or mouth, and to create a larger volume within each partitioned compartment, and to reduce exhalation resistance within any one compartment.

[0031] In a variation of the first embodiment, the nose section 3 and mouth section 2 of the mask may each be composed of one or more generally rectangular filter media plates. For example, see... Figures 3A to 3C The nasal breathing zone 3 may include a tubular structure located at the center of and attached to the oral breathing zone 2, wherein the nasal breathing port 33 includes a triangular incision in the filter plate of the oral breathing zone 2, the triangular incision being sized to fit and receive the user's nose, providing a passage and breathing connection from the user's nose to the nasal breathing volume. Furthermore, as... Figures 4 to 6 As shown, the filter media plate for the nose section 3 may include additional length to accommodate the wearer's nasal ridge, and a malleable wire or semi-rigid insert 5 may be added at and along the top edge of the nose section 3 material to provide support for the mask on the wearer's nasal ridge, as shown in the figure. Elastic ear loops 4 may be attached to the side edges of the oral cavity section 2, for example by adhesive, buckles 7, or acoustic welding, to allow the wearer to secure the mask near their head. The plate forming the nose section 2 may be folded along the centerline CL to form side plate edges, which are joined along and perpendicular to the length of the oral cavity breathing section 2 by adhesive or acoustic welding 8, such that the side plate edges extend away from the filter media plate of the oral cavity breathing section 2, forming a tent-like structure. Figure 5A side view of the first embodiment is shown, illustrating an optional modification in which the nasal breathing partition 3 may have a height or depth dimension 10 that tapers or varies in distance from the apex of the tent-like structure to the outer surface of the plate including the oral breathing partition 2, and the nasal breathing partition 3 has a bottom width 11 that is attached to the oral breathing partition 2 at its centerline, but not entirely laterally, because the width 11 further allows fresh air or breathing to flow from outside the front of the oral breathing partition 2 into the nasal breathing partition 3, and vice versa. Figure 6 As shown in the image. Figures 7A to 7B Another version of this embodiment is shown, in which a spacer or bridge 25 is added, which is positioned against the outer surface of the oral breathing zone 2 and the outer-posterior surface of the nasal breathing zone 3, and positioned between the outer surface of the oral breathing zone 2 and the outer-posterior surface of the nasal breathing zone 3, to facilitate and increase the air gap 9 and form an airflow path. Figure 7A As shown, bridge 25 can be generally rectangular, shaped with missing side segments and feet that extend vertically from the adjacent side segments of bridge 25 and laterally relative to the outer surface of the plate of the oral breathing zone 2. Furthermore, as... Figures 8A to 9B As shown, a mask incorporating various aspects of the present invention may include a configuration in which the oral breathing barrier 2 has a top edge 22A, and the bottom edge of the nasal breathing section 3 is attached to at least a portion of the top edge 22A of the oral breathing barrier, such as... Figure 8A The part most clearly shown, or generally attached to the entire top edge 22A, is as follows: Figure 9A As shown in the figure; and furthermore, various aspects of the invention can be implemented such that the nasal breathing section 3 and the oral breathing section 2 are constructed and used separately, as shown in the figure. Figure 8B and Figure 9B As shown in the image.

[0032] Figures 10 to 20Alternative third and fourth preferred embodiments are shown. These alternative third and fourth embodiments also filter breaths from the user's nose and mouth, respectively, and include an oral breathing volume and a nasal breathing volume. The oral breathing volume is constructed from one or more oral breathing sections or barriers, which may each consist of one or more sheets or plates of a first filter medium. The nasal breathing volume is constructed from one or more nasal breathing sections or barriers, which may also consist of one or more sheets or plates of a first filter medium or one or more sheets or plates of a second filter medium. Similarly, at least one filter medium plate separates the nasal breathing volume and the oral breathing volume to prevent the exchange of breaths from the user's nose to the user's mouth, and vice versa. In the third and fourth embodiments, the oral breathing barrier 2 may be generally convex and has a first side and a second side positioned towards and away from the user's face, respectively. The alternative third and fourth preferred embodiments of the oral breathing barrier are preferably constructed of a plurality of filter plates that are sewn together or otherwise secured together, as is common in the art, to form a raised shape for the oral breathing barrier. See, for example, Figure 15 and Figures 21A to 21C .

[0033] In each embodiment, the finished mask has an outer edge 222C of the oral respiratory barrier, which has a smooth hump or peak at its middle top edge, transitioning from there to an opposite, smooth, curved, sloping edge (see...). Figure 11 The mask extends from the first edge to the second edge, and then to the central bottom raised edge, which is symmetrically located on both sides of the smooth hump or peak. The first and second edges can be complex and raised. A semi-rigid nose pad 324 is sewn or otherwise attached to the outer edge 222C of the oral respiration barrier at the center and along the smooth hump profile, and the nostrils 322 are positioned near-below the semi-rigid nose pad 324. In use, the mask is worn on the user's face by placing the oral respiration filter over the user's mouth and the nostrils 322 over the user's nose to prevent the exchange of breath from the user's mouth to the user's nose and vice versa. Furthermore, in both embodiments, the central bottom raised edge can be composed of a chin plate 210, which is a mountain-shaped plate 212 (see Figure 12The mountain-shaped plate 212 has a generally linear edge 212A, which is sutured or otherwise attached to the middle of the bottom of the outer edge 222C of the oral respiratory barrier. The oral respiratory barrier 2 may consist of a pair of oral respiratory barrier plates 244, which have a concave edge 244C (in which wedge-shaped reliefs can be cut) and a generally linear edge 244A (which can be... Figure 15(As shown, it is slightly convex). In a preferred embodiment, the oral respiratory barrier plate 244 is made by cutting the pattern shown in the illustration from a filter plate folded in two, such that the cut pattern forms two matching oral respiratory barrier plates 244. When unfolded, the two matching oral respiratory barrier plates 244 remain connected to each other at a rectangular section between the two plates 244, and the periphery of the nostrils 322 is formed from the recessed edge 244C of the oral respiratory barrier. The unfolded oral respiratory barrier plates 244 can be stitched or welded together along the generally linear edge 244A of each plate to form a seam 245 and a hole for the nostrils 322 in the oral respiratory plate 244, thus forming a generally convex oral respiratory barrier 2. The nasal respiratory volume is composed of a first nasal respiratory volume plate 320 and a second nasal respiratory volume plate 330, which are connected to each other along longitudinal edges 320A and 330A to form a longitudinal tubular shape for the nasal respiratory volume 3. In the illustrated embodiment, the first nasal breathing volume plate 320 may have a collar shape or bib shape 315 at a first end. This collar shape or bib shape 315 may form a nasal hump or nasal ridge by forming a nasal hump or ridge along the center line of the shorter edge 320B of the first nasal breathing volume plate 320, including the collar shape, and by stitching together the inner longitudinal edges 322A extending from the collar shape to form a first nasal breathing volume plate seam extending from the nasal hole 322 to the bottom edge of the nasal breathing volume. Furthermore, the longitudinal edge 322A of the first nasal breathing volume plate 320 may be slightly curved as shown, or it may be generally linear. The second nasal breathing volume plate 330 of this embodiment may include a generally rectangular filter plate, or a generally trapezoidal filter medium plate as shown, wherein the long edge 330A of the plate 330 is preferably generally linear and generally parallel, but optionally, not perfectly parallel. Structurally, the first nasal respiratory volume plate 320 and the second nasal respiratory volume plate 330 are connected to each other along their longer edges 320A and 330A, respectively, to form a tubular shape for the nasal respiratory volume 33. The periphery of the first end of this tubular shape is connected at the first ends 320B and 330B to the periphery formed by the recessed edge 244C of the oral respiratory barrier to form a nostril 322. The periphery of the second end of this tubular shape is closed and optionally attached to the middle bottom raised edge 222C of the oral respiratory barrier 2, thereby forming an air gap 9 between the oral respiratory barrier 2 and the nasal respiratory volume 33. Figure 14 As shown.

[0034] In the fourth preferred alternative embodiment (see...) Figures 16 to 20The oral respiratory barrier can be constructed from a first oral respiratory barrier plate and a second oral respiratory barrier plate 224, which respectively have a convex, curved first edge 224A and a combined curved second edge 224B (see...). Figure 17 Furthermore, the nasal cavity breathing volume 3 can be constructed from a generally longitudinal first nasal cavity breathing volume plate and a second nasal cavity breathing volume plate 310, which can respectively have a first plate protruding edge and a second plate protruding edge 310A. Figure 20 The cutting patterns for the plate shape and their respective relative dimensions are shown. A fourth embodiment of the mask can be constructed by stitching or acoustically welding each first plate edge 310A along a portion of the length of each second plate edge 310A to form a longitudinal volume open at the end periphery. Each of the raised, curved first edges 224A of the first oral respiratory barrier plate and the second oral respiratory barrier plate 224 is respectively connected to both sides of the longitudinal volume formed by the longitudinal first nasal respiratory volume plate and the second nasal respiratory volume plate 310 and connected to the outer surface (224A to 310A) of the longitudinal volume, which forms a transition structure including a generally raised oral respiratory barrier 2. Preferably, in the generally raised oral respiratory barrier 2, a generally impermeable filter media plate is positioned in front of the user's mouth. This generally impermeable filter media plate may include a ridge plate 230 of a defined size and dimension for positioning in front of the user's lips. The ridge plate 230 may be laterally attached to the formed generally raised oral respiratory barrier 2. A first nasal respiratory volume plate 310 (i.e., the plate 310 inside the oral respiratory barrier 2) may be laterally trimmed at the top of the ridge plate 230. A nasal orifice or nasal opening 322 is added above and centered on the trimmed first nasal respiratory volume plate 310 and may be made of an arched plate 228 (e.g., a mesh arched plate 228 as illustrated), attached along the top or edge of the ridge plate 230, and attached along the top and side edges of the outer edge 222C of the oral respiratory barrier. Therefore, the nasal breathing volume 3 includes the volume between the arched plate 228 and the second nasal breathing volume plate 310.

[0035] Figures 21A to 23A fifth alternative embodiment of the mask is shown, wherein the nasal breathing volume includes at least one, but preferably two, transverse nasal breathing volumes, providing a breathing volume separate from a dedicated oral breathing volume within and behind the two transverse nasal breathing barriers 350. The respective separate nasal and oral breathing volumes may be separated by at least one filter media layer, such that oral breathing occurs primarily in and through the oral breathing volume, and nasal breathing occurs primarily in and through the nasal breathing volume. An embodiment of the illustrated transverse nasal compartment mask may be constructed from multiple cut or stamped fabric pieces that may be sewn or glued together to form a transverse nasal compartment mask having substantially different nasal and oral breathing pathways, nasal and oral breathing zones, and nasal and oral breathing volumes. See also Figure 23The main body 350 plate, generally bib-shaped or collar-shaped, may have two matching raised edges D, which extend adjacent to the collar-shaped periphery N and the edge of the combined-shape outer plate including the raised upper outer edge P. The matching raised edges D may connect to form a raised nasal breathing volume having a nostril 322 including the collar-shaped periphery N, and an elastic ear loop end for securing the mask to the user's face may be attached to the raised upper outer edge P. The oral breathing volume may be formed by an inner flap 354 plate, a left wing plate and a right wing plate 358, and an outer flap 356 plate. The inner flap 354 plate has an inner edge N and side edge segments II and GG, generally bib-shaped or collar-shaped; the left wing plate and the right wing plate 358 have side edge segments GG and HH and JJ and II, respectively; and the outer flap 356 plate has side edge segments HH and JJ. The three-dimensional oral breathing volume 3 can be formed, for example, by sound wave or heat welding or sewing, by connecting the side edge segment GG of the inner side of the mouth cover 354 along the side edge segment GG of the right wing plate 358 and connecting it to the side edge segment GG of the left wing plate 358, and connecting it to the side edge segment II of the left wing plate 358 along the side edge segments HH and JJ of the left and right wing plates 358, respectively, and connecting it to the side edge segments HH and JJ of the outer side of the mouth cover 356. As shown in the figure, the inner lip plate 354 and the outer lip plate 356 can be generally rectangular or trapezoidal, and the left and right wing plates 358 can be somewhat rectangular or somewhat curved triangular (as shown in the figure) to form a separation between the inner lip plate 354 and the outer lip plate 356. When constructed as described, this separation corresponds to at least approximately the dimensions of the bottom edge segments GH and JI of the left and right wing plates 358. The oral breathing volume 375 can be connected to the inner surface of the nasal breathing volume 350 by connecting and / or aligning the corresponding edge segments from the inner lip plate 354 and the outer lip plate 356 to finally complete the mask construction, wherein the filter medium and static deformation of the body 352 can be located away from the mouth and laterally adjacent to the cheek of the mask user to form an arched nasal breathing volume 350 and path.

[0036] While various embodiments have been described above, those skilled in the art should understand that the description is by way of example only and not as limiting. Therefore, the breadth and scope of the claims or preferred embodiments should not be limited by any of the exemplary embodiments described above, but should be defined solely by the following claims and their equivalents.

Claims

1. A mask for use on a user's face to filter breath from the user's nose and the user's mouth, respectively, the mask comprising: a generally convex oral breath barrier having an oral breath barrier first side, an oral breath barrier second side, the generally convex oral breath barrier having an oral breath barrier outer edge comprising a smooth peak at a middle top edge, opposing smooth curved beveled edges symmetrically located on either side of the smooth peak from the smooth peak to first and second side edges, and a middle bottom convex edge, the generally convex oral breath barrier having a nose hole located near-below the middle top edge and comprised of first and second nose hole edge segments that respectively extend outward and away from the middle top edge and then inward to meet at an inner-middle portion of the oral breath barrier, the generally convex oral breath barrier comprised of a first filter media and sized such that the inner-middle portion of the oral breath barrier contacts against the user's upper lip, the first and second side edges contact against the user's cheeks, and the middle bottom convex edge contacts against and below the user's chin to collectively form an oral breath volume for receiving breath from the user's mouth and relatively rejecting receiving breath from the user's nose; and a nasal breath volume attached to the oral breath barrier for breathing through the nose hole, the nasal breath volume comprised of first and second nasal breath barriers, the nasal breath volume having a forward tubular shape extending at least to the inner-middle portion of the oral breath barrier between the nose hole; wherein the mask can be worn on a user's face by receiving the user's mouth into the generally convex oral breath barrier and receiving the user's nose into the nose hole.

2. The mask of claim 1, further comprising: a semi-rigid nose rest located in the oral breath barrier outer edge, centered along the profile of the smooth peak.

3. The mask of claim 1, wherein: the middle bottom convex edge is comprised of a gable board having generally linear edges that connect along and to a bottom edge of the oral breath barrier.

4. The mask of claim 1, wherein: the oral breath barrier comprises first and second oral breath barrier boards each having an oral breath barrier board first edge that respectively connect along and to generally opposite sides of the tubular shape.

5. The facemask of claim 4, wherein, the nose hole is located in an arcuate panel that extends downward from the side edges and the top edge of the oral breathing barrier and is connected to the inner-middle portion of the oral breathing barrier.

6. The facemask of claim 5, wherein, the gable panel extends from the inner-middle portion of the oral breathing barrier to a second inner-middle portion of the oral breathing barrier and the gable panel is substantially impermeable and is sized and dimensioned to be positioned in front of the user's lips.

7. The facemask of claim 1, wherein, the nasal breathing volume further comprises a first nasal breathing volume panel and a second nasal breathing volume panel, the first and second nasal breathing volume panels are connected along edges to form the tubular shape for the nasal breathing volume.

8. The facemask of claim 7, wherein, the second nasal breathing volume panel has a collar shape at a first end, the collar shape forms the nose hole.

9. The facemask of claim 7, wherein, the tubular shape has an open first end connected with the nose hole, a closed second end connected with the middle bottom raised edge of the oral breathing barrier, and a middle portion not connected with the oral breathing barrier to allow an air gap between the oral breathing barrier and the tubular shape.

10. The facemask of claim 1, wherein, the oral breathing barrier is comprised of a first filtration medium, the oral breathing barrier includes a nose hole comprised of a collar shape; and the nasal breathing volume is comprised of a tubular configuration of a second filtration medium, the tubular shape has an open end perimeter connected to the collar shape; wherein the facemask can be worn by placing the oral breathing volume over the user's mouth and receiving the user's nose into the nose hole.

11. The facemask of claim 1, wherein, the tubular shape is comprised of a first filtration panel and a second filtration panel that are generally rectangular, wherein opposite side edges of the first panel are connected to opposite side edges of the second panel, respectively.

12. The facemask of claim 1, wherein, the oral breathing barrier is comprised of an oral breathing filtration medium panel, the nose hole is in the oral breathing filtration medium panel, and the nasal breathing volume is comprised of a nasal breathing filtration medium panel, the nasal breathing volume has an open end with an open end perimeter that is aligned with and connected to the nose hole.

13. The facemask of claim 12, wherein, the oral breathing barrier has a collar shape with an inner side edge that extends outward from the collar shape, and the oral breathing filtration medium panel is recessed by being connected along and connecting the inner side edges to each other.

Images