Facial interface

1. A facial interface comprising:

a flexible face contact layer configured to cover a user's face and comprising a contact free overlay of an ocular region of a user's face which comprises a slot and a flap, said flap configured to fold away from said ocular region, to allow said user to see through said facial interface; and

a nasal layer configured to sealably cover an external nose region of said user,

wherein said flexible face contact layer and said nasal layer do not impede circulation of air through said user's nostrils.

2. The facial interface of claim 1 , wherein said flexible face contact layer is further configured to cover a neck region, a forehead, a temporal region, a cheek region, a jaw region, a chin region, of a user's face, or combinations thereof.

3. The facial interface of claim 1 , wherein said flexible face contact layer is further configured to cover said external nose region.

4. The facial interface of claim 1 , wherein said flexible face contact layer is further configured to cover said external nose region of said user and provide fluid circulation of air through said user's nostrils.

5. The facial interface of claim 1 , wherein said flexible face contact layer and/or said nasal layer is opened over said nostrils of said user, or wherein said flexible face contact layer and/or said nasal layer further comprises a breathable overlay over said nostrils of said user.

6. The facial interface of claim 1 , wherein said flexible face contact layer and/or said nasal layer is configured to cover a base of the eye area, cover a bridge of the nose, around the nose and nostrils, or a combination thereof.

7. The facial interface of claim 1 , wherein said flexible face contact layer and/or said nasal layer further comprises a sub-nasal tab for coverage of a contour of said nose and nostrils.

8. The facial interface of claim 7 , wherein said sub-nasal tab comprises a pair of sub-nasal tabs, with one sub-nasal tab on each side of each nostrils, without joining under said nose or wherein said sub-nasal tab comprises a single sub-nasal tab joining under said nose.

9. The facial interface of claim 1 , wherein said nasal layer is laminated over said flexible face contact layer.

10. The facial interface of claim 1 , further comprising a flexible external layer, contacting said flexible face contact layer and/or said nasal layer, configured to modulate thickness of said facial interface.

11. The facial interface of claim 1 , further comprising a nasal padding layer, to provide padding to said nasal layer.

12. The facial interface of claim 1 , further comprising a cervical wing, configured to cover a neck region.

13. The facial interface of claim 12 , wherein said cervical wing is a pair of cervical wings configured to cover both sides of a neck region.

14. The facial interface of claim 1 , further comprising an auricular clearance, configured to provide clearance between ears of the user and said facial interface.

15. The facial interface of claim 1 , further comprising a grip layer to provide adherence and prevent slippage of an overlaid mask from said facial interface, and wherein said grip layer is configured to cover said external nose region, a neck region, a temporal region, a forehead region, and combinations thereof.

16. The facial interface of claim 1 , further comprising means to maintain said facial interface in place on a user's head.

17. The facial interface of claim 1 , wherein said facial interface is configured as having a thickness tapering off toward an outline thereof, to avoid marking of said user's skin from use of said facial interface.