Air cleaning blower systems, methods, and adaptations

An air-cleaning or gas-cleaning apparatus comprising:

• an inlet cover comprising a rigid flat surface with a central opening;
• a housing in a form of an incomplete cylinder comprising a hollow inner cavity and walls that extend circularly around the hollow inner cavity to a particular height between an inlet end and a discharge end and that are separated by a slit that creates a gap of the particular height between a first end and an opposite second end of the walls, wherein the inlet end of the housing comprises a first lip or flange that extends perpendicularly over the walls and away from the hollow inner cavity with the first lip or flange being directly connected to the inlet cover, and wherein the discharge end of the housing comprises a second lip or flange that extends perpendicularly from the walls and perpendicularly to or inclining away from the hollow inner cavity;
• a clean-side cover that is directly connected to the second lip or flange at the discharge end of the housing, the clean-side cover having a rigid flat surface with a plurality of apertures surrounding a center of the clean-side cover and with flat or inclined brackets extending between the plurality of apertures towards a center of the clean-side cover to form an impeller mount;
• and
• an impeller mounted to the impeller mount and disposed inside the housing between the inlet cover and the clean-side cover, wherein the impeller comprises a plurality of blades that rotate to induce suction of particulate-pervaded air or gas through the central opening, to circulate heavier particulates from the particulate-pervaded air or gas against an interior side of the walls until ejection through the slit, and to circulate lighter cleaned air or gas from the particulate-pervaded air or gas in front of the heavier particulates until ejection through the plurality of apertures.