... efficiency filter, fiber glass filter, pre panel filter, fan filter unit,air purifcation systems, ceiling filter ,edm iflter .......Commen Applications:Stainless steel or cold armor plating fan filter unit;Least ... ×570×69mm600×600×69mmAir flow18.5cmm20cmm9cmm10cmmVarialbe speed controlStepless Airflow speed control can regulates airflow velocity freelyVoltage/ CurrentSingle-phase or three phase ...