Patent ID: 6174340
Filing Date: 2001-01-16
Classification: B01D

Abstract:
A room air filter apparatus comprising:a multi-sided housing frame having longitudinally spaced first and second ends,a plurality of sides between said first and second ends,a plenum inside said housing frame,each of said sides having an empty space framed by edges of said each of said sides,an exhaust fan mounted to said housing frame and operably disposed to draw air from said plenum and to exhaust the air through said first end,filter panels on said sides, each of said panels removably attached to outer surfaces of said edges,filter material mounted in said panels to cover said empty spaces wherein said filter material is a self-charging electrostatic washable material,attachment means to removably attach said filter panels to said sides and hold said filter panels against said outer surfaces of said edges, anda lamp fixture and shade assembly mounted to and outside of said housing frame.