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aqa5 t1_jbsk3ps wrote

Nothing to see here, this is an advertisement for a $45 plastic cap with holes... You can restrict your airflow with your lips to breathe slowly.

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antsam9 t1_jbuwuvd wrote

You can achieve a similiar effect by breathing out through a tiny straw

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lyam23 t1_jbsscwg wrote

Don't breathe through your mouth.

EDIT: mouth breathers!

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