WE CLAIM:
1. A laminated nonwoven fabric comprising a nonwoven
fabric layer (A) and a nonwoven fabric layer (B),
wherein
the nonwoven fabric layer (A) is formed from a fiber A having a single fiber diameter of 50 nm or more and 8 00 nm or less,
the nonwoven fabric layer (B) is formed from a fiber B having a single fiber diameter of 3 urn or more and 30 urn or less,
the nonwoven fabric layer (B) includes 15 to 40% by mass of a fiber Bl based on all of the fibers constituting the nonwoven fabric layer (B), the fiber having tensile strength of 2.0 cN/dtex or less as measured based on JIS L 1015: 2010 8.7.2,
the nonwoven fabric layer (B) includes a fiber B2 having tensile strength exceeding 2.0 cN/dtex as measured based on JIS L 1015: 2010 8.7.2, and
the nonwoven fabric layer (A) is disposed as an outermost layer of at least one surface.
2. The laminated nonwoven fabric according to claim 1,
wherein
the laminated nonwoven fabric has wet stiffness of

0.12 mN or more and 0.18 mN or less as measured based on JIS L 1913: 2010.6.7.3, and
the laminated nonwoven fabric has wet tensile strength of 15 N/25 mm or more and 50 N/25 mm or less as measured based on JIS L 1913: 2010.6.3.2.
3. The laminated nonwoven fabric according to claim 1 or
2, wherein
the laminated nonwoven fabric has a basis weight of 3 0 g/m2 or more and 65 g/m2 or less, and
the laminated nonwoven fabric has a thickness of 0.3 mm or more and 1.3 mm or less.
4. The laminated nonwoven fabric according to claim 3, wherein a thickness ratio (A/B) of the nonwoven fabric layer (A) to the nonwoven fabric layer (B) is 0.05 or more and 0.67 or less.
5. The laminated nonwoven fabric according to any one of claims 1 to 4, wherein the fiber Bl having tensile strength of 2.0 cN/dtex or less as measured based on JIS L 1015: 2010 8.7.2 has a single fiber diameter of 3 urn or more and
8 urn or less.
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6. The laminated nonwoven fabric according to any one of

claims 1 to 5, wherein a variation of the single fiber diameter of the fiber A is 1.0 to 20.0%.
7. The laminated nonwoven fabric according to any one of claims 1 to 6, wherein the fiber A has a single fiber diameter of 100 nm or more and 400 nm or less.
8 . The laminated nonwoven fabric according to any one of claims 1 to 7, wherein the fiber A is a polyamide fiber.
9 . The laminated nonwoven fabric according to any one of claims 1 to 8, wherein
the nonwoven fabric layer (B) includes the fiber B which is a polyester fiber, and
a content of the fiber B which is the polyester fiber to the total mass of the nonwoven fabric layer (B) is 60% by mass or more and 85% by mass or less.
10. The laminated nonwoven fabric according to any one of claims 1 to 9, wherein
the fiber Bl having tensile strength of 2.0 cN/dtex or less as measured based on JIS L 1015: 2010 8.7.2 is a regenerated fiber, a semi-synthetic fiber, or an animal natural fiber, and
the fiber Bl is included in an amount of 9 to 36% by

mass based on the entire laminated nonwoven fabric.
11. A laminated nonwoven fabric comprising a nonwoven
fabric layer (A) and a nonwoven fabric layer (B),
wherein
the nonwoven fabric layer (A) is formed from a fiber A having a single fiber diameter of 50 nm or more and 800 nm or less,
a variation of the single fiber diameter of the fiber A is 1.0 to 20.0%,
the nonwoven fabric layer (B) is formed from a fiber B having a single fiber diameter of 3 urn or more and 100 urn or less, and
the nonwoven fabric layer (A) is disposed as an outermost layer of at least one surface of the face mask.
12. The laminated nonwoven fabric according to claim 11, wherein the fiber A has a single fiber diameter of 10 0 nm or more and 400 nm or less.
13. The laminated nonwoven fabric according to claim 12 or 13, wherein
the fiber B is a polyester fiber, and the fiber B is included in an amount of 90% by mass or more based on the total mass of the nonwoven fabric

layer (B).
14. The laminated nonwoven fabric according to any one of claims 1 to 13, wherein a coefficient of static friction of a surface of the laminated nonwoven fabric which is the nonwoven fabric layer (A) disposed as an outermost layer with respect to a simulated silicon skin surface is 1.5 or more.
15. A face mask comprising the laminated nonwoven fabric according to any one of claims 1 to 14.