The article is devoted to the analysis of the physical essence of the process of reducing air pollution for the woodworking shop of the enterprise serving the objects of urban construction, within the framework of the physical and energy approach. According to this approach, wood dust is considered from the position of the theory of dispersed systems, which changes its properties under the influence of external dispersed systems. The whole process is gradually illustrated by a physical model of the process of reducing air pollution, as well as a scheme of transformation of the dispersed system (dust aerosol) in the process of reducing air pollution.

Keywords: environmental safety in construction, the object of urban construction, dispersion system, woodworking shop, wood dust, air pollution reduction, physical and energy approach, physical model of the process of reducing air pollution.