Ventilation shall be sufficient to admit fresh air and remove disagreeable odors. A sufficient number of windows capable of being opened, or a mechanical ventilation system provided with emergency electrical power, shall be provided in order to allow for sufficient ventilation in case of breakdown in the normal ventilation system or normal power failure.     
     Source Note:        The provisions of this §261.256 adopted to be effective December 19, 1994, 19 TexReg 9526.