One of the ways to modernization of the existing equipment of dust filtration is to use in the filter houses the filter bags with increased by surface of filtration. The other way is concluded in use in bag filter houses the filter bags with increased by surface of filtration at development and design of new compact equipment of dust filtration.... DESA Co.Ltd. brings on the market the new technology 3D Economic System of Aspiration using in the filter houses the filter bags "3DESA filtrpatron" are made from nonwoven filtering materials Patent EP1459796 (golden medal salon INVENTIONS GENEVA 2013), patent RU 2283683.....