Patent ID: 7008469

Claim:
A portable air filtration system for filtering air, said filtration system comprising: a filter housing including an air inlet and an air outlet and defining a filtration chamber between said air inlet and said air outlet; an intake fan disposed within said filter housing for moving the air through said filtration chamber by drawing the air in through said air inlet and dispelling the air out through said air outlet; an ionizing mechanism disposed between said intake fan and said air outlet for ionizing particles within the air to a negative charge; a filter media having an upstream side facing said air inlet and a downstream side facing said air outlet wherein said filter media is disposed between said ionizing mechanism and said air outlet for entrapping the particles between said upstream side and said downstream side; a conductive coating applied to said upstream side of said filter media to establish an electric field between said ionizing mechanism and said conductive coating, wherein said conductive coating is electrically-connected to ground and to said filter media such that said upstream side of said filter media is electrically-connected to ground through said conductive coating for dissipating the negative charge of the particles entrapped within said filter media.