The order also included the supply of vertical and horizontal buffers that would ensure a correct direction of the airflow in the environment, preventing both recycles and by-pass currents that could jeopardize optimum ripening of the product. The canopy lights used to illuminate the cells were fastened and wired, according to standard practice, to the air-cooler casing because the configuration of these cells is such that there is not enough room for them either on the walls or on the ceiling.