A method of limiting the spread of the norovirus within a cruise ship comprising: identifying a surface within a common area of a cruise ship that passengers are likely to touch; and applying a silane quaternary ammonium ion or salt thereof to the surface. The common area can be an elevator and the surface an elevator button. The common area can be a stairway and the surface a handrail. The common area can be a casino. The common area can be a dining room. The common area can be a walkway and the surface a handrail. The silane quaternary ammonium ion or salt thereof can be 3-(trimethoxysilyl)propyldimethyloctadecyl ammonium ion, 3-(trimethoxysilyl)propyldimethyloctadecyl ammonium chloride, 3-(trihydroxysilyl)propyldimethyloctadecyl ammonium ion, or 3-(trihydroxysilyl)propyldimethyloctadecyl ammonium chloride. Applying the silane quaternary ammonium ion or salt thereof to the surface comprises applying a solution including the silane quaternary ammonium ion or salt thereof and a solvent.

A method of limiting the spread of the norovirus within a cruise ship comprising: identifying a surface within a common area of a cruise ship that passengers are likely to touch; and applying a silane quaternary ammonium ion or salt thereof to the surface. The common area can be an elevator and the surface an elevator button. The common area can be a stairway and the surface a handrail. The common area can be a casino. The common area can be a dining room. The common area can be a walkway and the surface a handrail. The silane quaternary ammonium ion or salt thereof can be 3-(trimethoxysilyl)propyldimethyloctadecyl ammonium ion, 3-(trimethoxysilyl)propyldimethyloctadecyl ammonium chloride, 3-(trihydroxysilyl)propyldimethyloctadecyl ammonium ion, or 3-(trihydroxysilyl)propyldimethyloctadecyl ammonium chloride. Applying the silane quaternary ammonium ion or salt thereof to the surface comprises applying a solution including the silane quaternary ammonium ion or salt thereof and a solvent.

Described is a device (1) for reducing pollutants in a gaseous mixture comprising: a containment body (2) having an inlet portion (3) for the gaseous mixture and an outlet portion (4) for the gaseous mixture, the containment body (2) imposing on the gaseous mixture a fixed direction of flow (D), at least one filtering unit (10) comprising a photocatalytic filter (7) interposed, along the fixed direction of flow (D), between a first light source (6a) and a second light source (6b), both having a wavelength in the visible spectrum (400-700 nm), the photocatalytic filter (7) comprising a photocatalytic nanoparticle coating and the nanoparticle coating comprising titanium dioxide doped with a nitrogen doping agent. a unit (5) for straightening the flow before the filtering unit (10).

A method of limiting the spread of the norovirus within a cruise ship comprising: identifying a surface within a common area of a cruise ship that passengers are likely to touch; and applying a silane quaternary ammonium ion or salt thereof to the surface. The common area can be an elevator and the surface an elevator button. The common area can be a stairway and the surface a handrail. The common area can be a casino. The common area can be a dining room. The common area can be a walkway and the surface a handrail. The silane quaternary ammonium ion or salt thereof can be 3-(trimethoxysilyl)propyldimethyloctadecyl ammonium ion, 3-(trimethoxysilyl)propyldimethyloctadecyl ammonium chloride, 3-(trihydroxysilyl)propyldimethyloctadecyl ammonium ion, or 3-(trihydroxysilyl)propyldimethyloctadecyl ammonium chloride. Applying the silane quaternary ammonium ion or salt thereof to the surface comprises applying a solution including the silane quaternary ammonium ion or salt thereof and a solvent.

A method of limiting the spread of the norovirus within a cruise ship comprising: identifying a surface within a common area of a cruise ship that passengers are likely to touch; and applying a silane quaternary ammonium ion or salt thereof to the surface. The common area can be an elevator and the surface an elevator button. The common area can be a stairway and the surface a handrail. The common area can be a casino. The common area can be a dining room. The common area can be a walkway and the surface a handrail. The silane quaternary ammonium ion or salt thereof can be 3-(trimethoxysilyl)propyldimethyloctadecyl ammonium ion, 3-(trimethoxysilyl)propyldimethyloctadecyl ammonium chloride, 3-(trihydroxysilyl)propyldimethyloctadecyl ammonium ion, or 3-(trihydroxysilyl)propyldimethyloctadecyl ammonium chloride. Applying the silane quaternary ammonium ion or salt thereof to the surface comprises applying a solution including the silane quaternary ammonium ion or salt thereof and a solvent.

A pre-saturated disposable disinfecting wipe may include a microfiber cloth. The microfiber cloth may include a low weight substrate having a first face and an opposed second face, and microfiber yarn attached to the low weight substrate in a plurality of parallel rows of stitches. The pre-saturated disposable disinfecting wipe further includes a disinfecting formulation saturated in the microfiber cloth. The pre-saturated disposable disinfecting wipe may have a single-touch two-minute wetness coverage of more than 100 in.sup.2. A method of manufacturing a pre-saturated disposable disinfecting wipe may include saturating, with a disinfecting formulation, a microfiber cloth.