The mark consists of a two-dimensional configuration that may be displayed by a patient medical monitor for monitoring lung function comprising the following within a rounded-corner rectangle with curved vertical sides: a depiction of a grey computer monitor and medium blue cable with a medium blue and light blue connector on a light blue background in the upper left corner, a green and black battery charge icon on a black background in the upper right corner, a green arrow pointing left on a black background in the bottom left corner, a green arrow pointing right on a black background in the bottom right corner, a white check mark icon within a black rectangle and a white clock icon within another black rectangle, the two rectangles positioned between the left arrow and the right arrow, and four rectangular windows in the middle of the screen on a dark blue background, each including a light blue background with a medium blue outline, including a first window containing a tan and black depiction of a person using a handheld gray and black spirometer with a green arrow toward the upper left of the screen with the words.