This mechanical filtering system works without the need to maintain anything. It can work by placing a tip into a hole to reach the valve. This uses a sterilization process where a valve opens as the vacuum stage occurs. This is to keep air out of the way. The valve can then close while a second opens so sterilization can start. The valve will then close tightly to maintain the total load to keep it safe and manageable without getting harmful materials in the way of the setup as items are being cleaned out.
- Other characteristics:non perforated