Perseus Military and Aerospace Fans Co., Ltd: Founded in 1996, Perseus is one of the most reliable suppliers of military and aerospace grade AC/DC fans. Perseus provides a full range of electric AC/DC & axial flow/centrifugal fans that meet the most stringent standards, which covers operating temperature ( -55°C to +125°C), fungus, salt fog, damp heat, sand and dust, humidity, vibration, shock, acceleration, temperature shock, acidic atmosphere and EMC.