Clean room air filter system with self-supporting filter units

In combination:

• an individual filter unit having a front face and a rear face and comprising a single frame, filter media within said frame and a filter media divider between separate sections of filter media, said filter unit being adapted for arrangement in an array for delivery of filtered air to a clean room, and an individual filter unit suspension assembly unshared with any other filter unit of the array, said individual filter unit suspension assembly comprising a bracket located at said divider and attached to said filter unit frame, said divider extending between said filter frame rear face and said filter frame front face, said divider having a shoulder portion defining said suspension assembly bracket, and an elongated member supported from a support surface and adapted to support said filter unit in spaced relation of said filter unit frame to said supporting surface, said suspension assembly elongated member extending a predetermined distance to between said filter unit frame front face and rear face, whereby said elongated member terminates beyond said frame rear face, said suspension assembly bracket being mounted to said filter unit frame in a manner to intersect with said elongated member.

In combination:

• an individual filter unit adapted for arrangement in an array for delivery of filtered air to a clean room, and an individual filter unit suspension assembly unshared with any other filter unit of the array, each said filter unit having a filter frame comprising a wall, said filter frame wall having on the outside of said filter frame wall a suspension assembly bracket, said suspension assembly further comprising an elongated member supported from a support surface to said bracket in engaging relation, and a fastener engaged with said bracket in elongated member retaining relation, whereby said filter unit frame is supported.

In combination:

• an individual filter unit having a front face and a rear face and comprising a single frame and filter media within said frame, said filter unit being adapted for arrangement in an array for delivery of filtered air to a clean room, and an individual filter unit suspension assembly unshared with any other filter unit of the array, said individual filter unit suspension assembly comprising a bracket attached to the outside of said filter unit frame and an elongated member supported from a support surface and adapted to support said filter by said bracket in spaced relation of said filter unit frame to said supporting surface.

In combination:

• an individual filter unit adapted for arrangement in an array for delivery of filtered air to a clean room, and an individual filter unit suspension assembly unshared with any other filter unit of the array, each said filter unit having a filter frame comprising a wall, said filter frame wall defining on the outside of said filter frame wall a suspension assembly bracket, said suspension assembly further comprising an elongated member supported from a support surface to said bracket in engaging relation.

A filter unit for installation in a clean room array of filter units said filter unit comprising a single filter frame, filter media within said frame, and a frame flange forming suspension assembly bracket defining a locus of attachment for an elongated member extending from a supporting surface, said filter unit frame including a frame wall surrounding said filter media, said frame wall defining an external bracket cooperating with said elongated member in filter unit supporting relation.