No classified employee shall receive any maintenance or payment in lieu thereof from the state, provided however that if quarters are available at any state institution or on any state property the department head thereof may assign to a classified employee such quarters, furnished or unfurnished, including only any or all of the following utilities: heat, fuel, gas, electricity and water, and provided further that a department head of a state agency which serves prepared meals may permit any classified employee to purchase such meals. Such employee shall reimburse the state for such quarters or meals at a rate to be determined by the personnel commission. Provided further that all employees of New Hampshire hospital, Laconia developmental services, and Glencliff home, who are required by the administration of their respective institution to wear uniforms or other required attire, shall be allowed to have said uniforms or required attire laundered at no cost to them by their respective institution and all employees of said institutions shall receive from regularly employed institutional physicians outpatient diagnostic screening and limited ambulatory treatment at no cost to them except for the filling of prescription drugs that might be indicated.