Roomside replaceable fan filter unit

Abstract

Embodiments described herein relate to a roomside replaceable fan filter unit having an integral aerosol injector ring. The roomside replaceable fan filter unit has a housing. The housing has a top wall having an inlet disposed therethrough, a plurality of sidewalls sealingly attached to the top wall at a first end, wherein the top wall and sidewalls partially enclose an interior volume, a mounting flange attached to the sidewalls on a second end extending from the sidewall in a direction from the interior volume, a sealing element disposed on the sidewall proximate the second end, wherein the sealing element extends into the interior volume and is adapted to sealingly engage a replaceable air filter, and a filter receiving aperture is disposed about the sealing element of the housing. An aerosol injector and a fan blade positioned to drive air through the inlet and into the housing, wherein the fan blade is disposed between the aerosol injector and the filter receiving aperture.

Dependencies are inferred from the claim text.