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→Add a Dotted Zero-Line
When analyzing the Flow Rate graph, it helps to add a Dotted Line at the zero flow. Zero-flow marks the change from inhale to exhale and exhale to inhale. Everything in the flow graph that is above the zero-line is positive flow, or an inhale (inspiration), and every thing below the line is negative flow or an exhale (expiration). To learn more about analyzing your Sleepyhead chart and flow rates, see [[Beginner's Guide to SleepyHead|The Beginner's Guide to Sleepyhead]]
[[file:dashed-line.png]]
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