Return air filter

B - Operations – Transporting – 01 – D

Patent

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Details

B01D 46/10 (2006.01) F24F 3/16 (2006.01)

Patent

CA 2076228

ABSTRACT A device for filtering air as it returns to the heating or cooling machine in a residential environment. The device is attached to the grill covering the intake opening of the air system. The device is held in place with an adhesive or hook and loop fastener.

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