MULTI-STAGE HOOD FILTER
A filter assembly includes a housing and a diffuser permanently affixed within a central portion of the housing. A baffle assembly is permanently affixed within the housing adjacent the diffuser. A removable support structure is installed within the housing on a side of the diffuser opposite the baffle assembly. A removable filter pad is installed between the removable support structure and the diffuser. The removable support structure may be supported on opposite ends by opposing lips of the housing.
1 . A filter assembly, comprising:
a housing;
a diffuser permanently affixed within a central portion of the housing;
a baffle assembly permanently affixed within the housing adjacent the diffuser;
a removable support structure installed within the housing on a side of the diffuser opposite the baffle assembly;
a removable filter pad installed between the removable support structure and the diffuser; and
wherein the removable support structure is supported on opposite ends by opposing lips of the housing.
2 . The filter assembly of claim 1 , wherein the removable support structure and removable filter pad are sized to allow for an air gap of greater than approximately ¼″ between the removable filter pad and the diffuser.
3 . The filter assembly of claim 1 , wherein the removable filter pad comprises wool fibers and viscose fibers.
4 . The filter assembly of claim 3 , wherein the viscose fibers comprise 50-95% of the removable filter pad.
5 . The filter assembly of claim 3 , wherein the wool fibers comprise 50-95% of the removable filter pad.
6 . The filter assembly of claim 1 , wherein the filter pad, the removable support structure and the diffuser are laterally spaced from the baffle assembly to allow a path of air through the baffle assembly.
7 . The filter assembly of claim 1 , wherein the removable support structure includes a back support portion with perforations formed therein.