Patent ID: 7216606

Claim:
A process of housing animals and reducing odors exiting from a pit containing animal feces, the process comprising the steps of; providing a building configured to house a plurality of animals; providing a pit beneath said building configured to retain feces from said animals; providing a fan to remove air from said pit; placing a filter of loose organic material in front of a stream of air being blown by said fan; blowing air through said filter and causing matter to collect on said loose organic material, thereby reducing an ability of said filter to permit airflow through said filter; causing said filter to have an increased ability to permit airflow through said filter while simultaneously increasing a capability of said filter to remove said matter from said stream of air; said step of causing said filter to have an increased ability to permit airflow comprises the steps of spraying a solution onto said loose organic material to cleanse said loose organic material; and said step of spraying a solution comprises a step of placing a spray nozzle behind said filter and spraying said solution in a direction of a stream of air when said stream of air is being blown from said fan to exhaust vapors from said pit.