Specification Brand : Nurnesy BulletPoint1 : Convenient and Practical: The oilless vacuum pump does not pollute the medium, requires no maintenance, can work continuously for a long time, which is stable and reliable. Equipped with bracket for easy fixation. BulletPoint2 : DC Motor Drive: The negative pressure vacuum pump is driven by miniature DC motor, which drives the internal mechanical eccentric motion. The eccentric motion drives the internal reciprocating motion of the diaphragm. BulletPoint3 : High Performance: This micro vacuum pump has a suction of 5L/min, a vacuum degree of 65kPa, a maximum pressure of 120kPa, low noise, low power consumption, and is particularly suitable for high negative environmental needs. BulletPoint4 : Wide Application: It can be used in hospitals, laboratories, scientific research and many other places. BulletPoint5 : Working Principle: Compress the air with a fixed volume in the pump chamber (compression suction port close, slight open positive pressure at the port), stretch (compression port close, negative pressure suction port open). Under a pressure difference, the air pressure (suction) enters the pump chamber and is discharged from the port. ItemName : Vacuum Pump Pump Household for Z512, Pump Home Negative Pressure Micro Vacuum Pumps Hand Held Vacuum Micro Vacuum Pump ItemPackageDimensions_Height : 5 centimeters ItemPackageDimensions_Length : 10 centimeters ItemPackageDimensions_Width : 8 centimeters ItemTypeKeyword : science-lab-pumps Manufacturer : Nurnesy ModelNumber : Nurnesy02e8bgdwzg NumberOfItems : 1 PartNumber : Nurnesy02e8bgdwzg ProductDescription : Item Type: Vacuum Pump