CLOSED AIR DISTRIBUTION SYSTEM FOR CLEANING AND SANITATION OF AIR NEAR WORKPLACES IN WORKSHOPS Russian patent published in 2012 - IPC F24F5/00 

FIELD: ventilation.

SUBSTANCE: closed air distribution system comprises a plant for dust catching, a fine air filter, fans, air collector, diffusers and air intake and air exhaust pipelines. A device for dust catching and a fine air filter are installed upstream an air collector, the vessel of which is arranged in accordance with a shape of a regular pyramid. Air exhaust pipelines are connected to an air collector at the top of the pyramid, and their quantity is equal to the number of regular pyramid faces. Diffusers installed at the ends of air exhaust pipelines are shaped as sockets and are equipped with corona-forming electrodes with connection of a high-voltage supply unit to a negative side, and a reservoir with biologically active substances, for instance, fir oil.

EFFECT: increased biological activity of air by means of its saturation with phytoncides and air ions.

1 dwg, 4 cl