Patent ID: 6341579
Filing Date: 2002-01-29
Classification: A01K

Abstract:
In an animal housing having a roof provided with a ventilation hole, a litter box filter system comprising:a) an exhaust system having an inlet and an outlet, and further comprising: 1. a fan housing; 2. an electric fan mounted in the fan housing; 3. an exhaust filter removably received within the fan housing; and b) a mat for connecting the exhaust system's inlet to said roof, wherein the mat is fixed to the inlet of the exhaust system and removably rests upon said roof, wherein said mat extends a distance beyond said inlet and covers a portion of said roof, wherein said mat forms substantially an air seal with the roof, whereby responsive to the electric fan, air may freely flow from the ventilation hole, into the inlet, through the exhaust filter and then exit the system via said outlet.