All equipment and supplies which are purchased through a program, contract, or grant with the department by or for qualified entities, including but not limited to individuals, corporations, local units of government and other state agencies and that are used to promote and maintain public health are exempt from the statewide personal property accounting system administered by the comptroller of public accounts described in Subchapter L, Chapter 403, Government Code. The qualified entities shall maintain complete equipment and supply records. The department may request the return of any usable equipment or supplies purchased with funds provided by the department upon the termination of the program, contract, or grant.