How much air do you breathe in and out in one day?

On average, a person breathes about 6 to 10 liters of air per minute at rest. Over the course of a day, this amounts to approximately 8,600 to 14,400 liters of air, depending on activity level. Factors such as age, fitness, and health can influence these numbers, but this provides a general estimate of daily air intake and output.