Thanks Mrs. D! I wasn't quite sure how to do this test, so I did it two ways 3 times each.

Took a deep breath while pinching my nose and holding it as long as I could:
45, 44, 45 seconds.

Took a normal breath, exhaled and held breath with what air was left:
15, 15, 20 (this way made me dizzy)

Counted how many breaths I take per minute:
12, 12, 13

Pat