Abstract: Solid low foaming and low pH all-purpose cleaning and disinfectant compositions are disclosed. The solid disinfectant compositions comprise approximately 50% w/w to approximately 75% w/w of citric acid encapsulated by a binder and approximately 1% to approximately 5.5% w/w of sodium benzoate. The solid cleaning and disinfectant compositions comprise approximately 50% w/w to approximately 75% w/w of citric acid encapsulated by a binder; approximately 1% to approximately 5.5% w/w of sodium benzoate; and approximately 10% w/w to approximately 15% w/w of sodium lauryl sulfate. The solid compositions are dissolved in water to produce a disinfectant solution comprising approximately 1.2% w/v to approximately 2% w/v citric acid and approximately 0.083% w/v to approximately 0.15% w/v sodium benzoate. A 10 minute contact time with the disinfectant solution provides a 5 log10 reduction in Staphylococcus aureus on a surface.

Abstract: A toothbrush-demonstration device and system. The device has a main body and comprising a plurality of toothbrush holders, each of the toothbrush holders being structured and configured to accept and removably secure therein a single toothbrush in a fixed position, the toothbrush comprising a handle and a head including a plurality of cleaning elements, wherein a plurality of toothbrushes can be securely mounted substantially parallel to one another in the plurality of toothbrush holders for a simultaneous movement with the device relative to a test surface. The system includes the device, two toothbrushes being compared, and a test surface.