Best answer
Sulfur Hexafluoride
People also ask
Why does gas make your voice sound deeper?
The more dense, or heavier, the gas, the slower the sound wave will travel. Inhaling a gas that is heavier then air, such as xenon, will have the opposite effect of helium and make your voice sound deeper. Do Whippets make your voice deeper?
What gas makes your voice sound like Morgan Freeman?
Breathing Sulphur Hexafluoride (The Deep Voice Gas): Although there are many gases that make you sound like Morgan Freeman, Sulphur Hexafluoride is the best candidate if you want to avoid dying within seconds of inhaling it. To be more specific, it is one of the only non-poisonous gas heavy enough to make your voice lower than normal.
How can I make my voice sound deeper without helium?
Inhaling a gas that is heavier then air, such as xenon, will have the opposite effect of helium and make your voice sound deeper. Do Whippets make your voice deeper?
What is the best gas to use to lower your voice?
Other options would include Nitrous Oxide also known as laughing gas used by dentists during surgeries. It has the added benefit of 鈥榬elaxing鈥?you, for lack of a better word, accompanied with visual distortions and euphoria. So, if you want to be able to remember your name while you try to lower your voice, sulphur hexafluoride is the way to go.