Characteristic: 1).It is adopted the super thin air filter without clapboard to minimize the size of structure. The clean bench is matched stainless steel table-board and glass on sides. 2). It makes the workaround roomy and bright. We adopt send-off wind system that the air velocity is adjustable by touch the switch lightly, which makes the wind speed perfect. 3).The prefilter that with big wind speed is convenient to take town. It is not only protect the HEPA filters life and also ensure the wind velocity. 4).Level air current,opened desk type,and convenient operation. Standard export packing.