FIELD: personal and household goods.;SUBSTANCE: dust processing method according to which the first number of particles of the first size (for example, PM10) is measured (in step PC1) and a second number of particles of a second size (for example, PM2.5) which is smaller than the first size is measured (in step PC2). In accordance with the invention, it is determined (in step Δ), whether the first quantity exceeds the second quantity by a given threshold value. If so, the robotic vacuum cleaner can be given a command to start cleaning the room.;EFFECT: method for dust treating is provided.;9 cl, 3 dwg
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