Aromatic filter system

Details Aromatic filter system Aromatic filter system

1996-06-11

1998-10-06

Woo, Jay H.

Gas separation: apparatus

With means to add fragrance or scent

55501, 55DIG31, 55511, B01D 51000

Patent

active

058171681

ABSTRACT:
A filter system for an HVAC system includes a rectangular frame with a central opening. A conventional filter spans the central opening for interaction with the incoming forced air. A grid spans the filter on the incoming air side thereof, the grid presenting a plurality of horizontal and vertical spaced-apart strands having aromatic particles impregnated therein. Upon contact of the incoming forced air with the grid, the aromatic particles are transferred to the incoming air so as to scent the conditioned air. The period of material transfer of the scent particles to the incoming forced air preferably corresponds with the useful filter life, such that a cessation of delivery of the scented air is indicative to the user that the filter proper needs to be changed.

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