Best quality! Durable! A wide product range for selection. Please check out our company website or contact us for more information. Thank you. Diann Bao, Inc. was established in 1988 and since then has focused on designing and manufacturing of linear air pumps for aerobic wastewater, sewage / septic treatment and environmental systems. After 2005 we stepped into the making of OEM and vacuum pumps for a broad range of medical, laboratory and industrial fields. AirMac, the brand of Diann Bao is reputed to reliable and highest quality to serve a wide range of applications, such as Environmental, Aquaculture, Laboratory, Food or Packaging machines, Health & Medical equipment, massage chairs, ... more