A face mask includes a fabric filter configured to be worn on a user's face. A composition with anti-viral properties is arranged on the fabric. The composition preferably includes anti-viral oils and an anti-viral metal such as copper or copper oxide.

A face mask includes a non-woven fabric filter configured to be worn on a user's face. A composition with anti-viral properties is arranged on the fabric. The composition preferably includes anti-viral oils and an anti-viral metal such as copper or copper oxide.

A method of manufacturing waterproof apertured materials or surfaces, and such materials or surfaces, using nanoparticle hydrophobic compositions and treatments, and preferably superhydrophobic compositions and treatments, which possess apertures retaining breeching members possessing liquid wicking properties which would normally render the surface or material water-permeable. By treating the breeching members with the nanoparticle hydrophobic or superhydrophobic compositions, a hydrophobic field extending from the breeching member is created, such that the extended hydrophobic field precludes passage of liquid through the apertures by wicking or capillary action.

A method of manufacturing waterproof apertured materials or surfaces using nanoparticle hydrophobic compositions and treatments, and preferably superhydrophobic compositions and treatments, wherein apertures of a size that would normally render the surface or material water-permeable may be provided in the surface or material. The method comprises determining the extent of the hydrophobic field that extends beyond the physical edge of a particular treated intersecting member interwoven to form the material to determine the allowable size of an aperture, such that the extended hydrophobic field present on the intersecting members surrounding an aperture will be sufficient to prevent surface wetting and water permeability by fully overlapping the aperture or by presenting a reduced area effective aperture that precludes passage of water.