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Breathing Tubes -- Flow Rate with Back Pressure Specification

When it comes to breathing tubes, CPAP tubes, and any devices with similar air masks that support respiration, too much or too little air flow will impact the amount of oxygen the user gets, which can be dangerous.  Air flow within these devices must fall within a very tightly specified flow range. 

In leak testing, a typical range is that a device must not leak more than 5cc at 10 psi. However, in a breathing tube application, the specification needs to be much tighter — often 2cc at 100 psi. A leak tester must be flexible enough handle an extremely tight specification. 

Additionally, applications like CPAP tubes must maintain a constant pressure, even in the presence of back pressure. Some devices can have vents that open in one direction and close in another. In this situation, a leak tester that can accommodate mass flow is required. 

Uson’s OptimavT leak tester, with its highly flexible platform and wide test range capabilities, is ideal for breathing tube applications.

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