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Negative pressure
What is negative pressure?
- Negative pressure is a pressure which is lower than the atmospheric pressure and positive pressure is a pressure which is higher than the atmospheric pressure.
- In practice the term vacuum is used for negative pressure. A vacuum is literally a situation without pressure and matter. The pressure is then 0 Pascal.
The Oxydent air pumps can be used both for negative pressure (suction) as well as positive pressure (blow).