CLAIMS
1. A dust-proof clothing using the following dust-proof material, wherein:
i) the dust-proof material has a fiber layer and an electret nonwoven fabric layer, and a total number of the fiber layer and the electret nonwoven fabric layer is 2 or more; and
ii) in the dust-proof material, the fiber layer and the electret nonwoven fabric layer, which are adjacent to each other, are adhered in a region having an area ratio of 5% or more and 10% or less.
2 . The protective clothing according to claim 1, wherein the electret nonwoven fabric layer of the dust-proof material is a meltblown nonwoven fabric or a spunbonded nonwoven fabric.
3 . The protective clothing according to claim 1 or 2, wherein the dust-proof material has an air permeability of 30 cm3/cm2/s or more.
4 . The protective clothing according to any of claims 1 to 3, wherein the electret nonwoven fabric layer is made of a meltblown nonwoven fabric that contains the following amount of additives:
iii) containing 0.5 to 5% by mass of a hindered amine

additive or 0.5 to 5% by mass of a triazine additive; or
iv) containing a total of 0.5 to 5% by mass of a hindered amine additive and a triazine additive, both being essential.
5. The protective clothing according to any of claims 1 to 4, wherein an adhesive to adhere the fiber layer and the electret nonwoven fabric layer of the dust-proof material is a hot-melt adhesive.
6. The protective clothing according to claim 5, wherein the amount of the hot-melt adhesive to adhere the fiber layer and the electret nonwoven fabric layer is 0.5 g/m2 or more and 3.0 g/mz or less.
7 . The protective clothing according to any of claims 1 to 6, having a thread sewing portion.