Then oil: Any height adjustment, to prevent contamination of waste oil splash environment drip pots can rotate 360 degrees, then increase the oil ranges. Pumping: vacuum pumping, fast clean and thorough. Windows: Windows 10 liters capacity, quality glance. Discharge of oil: low pressure drain quickly and safely. Total air design: does not produce sparks, temperature, may be suitable for gas station, repair shop, 4S shop workplaces.