Gas separation: apparatus – With means to add fragrance or scent
Patent
1998-07-15
2000-06-20
Smith, Duane S.
Gas separation: apparatus
With means to add fragrance or scent
96419, 96424, B01D 4644
Patent
active
060773367
ABSTRACT:
An air filter system that includes a mechanism for notifying a user when a proper filter replacement period had elapsed that further includes a scenting mechanism for scenting the air flowing through the filter system with a pleasant odor. The air filter system includes a scent impregnated filter element held within a filter element frame provided with a user notification system and multiple scent impregnated strips.
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Ulrich Marcia A.
Ulrich Uwe J.
Breaux Joseph N.
Smith Duane S.
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