Manually operated simplified vacuum pump substituted by a disposable syringe with an intake/exhaust valve unit and tubes.
【Overall Advantages to Users】
- By being consisted of a disposable syringe, an intake/exhaust valve unit and tubes, even more portable and easy to use compared with commonly available handy type vacuum pumps.
- Designed simply to be operated completely manually with no disposables such as electric power/oil and no maintenance costs. More suitable for physics experiments than chemistry ones because the intake/exhaust valve, despite their superior durability, can be swollen and deteriorated by being exposed to organic solvents.
- Atmospheric pressure
- Vacuum state
- Propagation of sound in air and in a vacuum state