Patent ID: 7909921
Filing Date: 2011-03-22
Classification: B01D

Abstract:
1. An air pollution device comprising at least one elongated thin parallelepiped air flow chute comprising a top end, a bottom end, a front surface, a rear surface, and a continuous vertical hollow shaft between the front surface and the rear surface, the top end attached to a roof ledge of a structure in a position perpendicular to the front surface; wherein the front surface and the rear surface extend vertically downwardly outside an exterior wall of the structure between a column of paired horizontally aligned windows; at least one air circulation fan disposed on a roof of the structure; wherein the air circulation fan operationally engages the air flow chute and circulates air flow from the bottom end of each air flow chute through the vertical hollow shaft; wherein the air flow chute receives air flow therethrough from the bottom end thereof through the hollow shaft; wherein the means for filtering the air that passes through the air pollution device further comprises (a) a plurality of filtration units located on the air flow chute, and (b) means for accessing each filtration unit.