ALS series airlift fermentation tank may accurately measure temperature pH value, and dissolved oxygen, and precisely control temperature and pH value. The flow agitation has small shear. With auto bubble removing device and peristaltic pump system, it has reliable anti-pollution performance. Precise gas filter ensures high filtration efficiency, large flow, small resistance, weight-resistance, and steam sterilizing (steam sterilizing temperature 140 )15-20 minutes. It can effectively filter the germ in the air. In addition, it has the advantages of small dimensions, long lasting performance, and easy installation. The pipes adopt quality stainless joint to effectively prevent leakage and germ pollution of the fermentation.