Ever see words so mixed up that you wanted to pinch your nose shut? That happens with me whenever I see these two words confused.

“Breathe” is to inhale and exhale, as in “We must breathe oxygen to stay alive.”

“Breath” is a solitary moment of inhaling or exhaling or the actual air that is inhaled/exhaled, as in “He stopped to catch his breath” or “His breath stunk like garlic.”

In short, you may not want to breathe someone’s breath.