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Making the Deepest Voice

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Written by Paul Strauss | April 30, 2021

We all know that inhaling helium can make your voice higher, and many of you know that sulfur hexafluoride can make it sound deeper. But Cody’s Lab is here to demonstrate what happens when you breathe in perfluorobutane, a non-toxic gas that’s almost twice as dense as the sulfur hexafluoride.


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