FIG. 1 is a front view of a first image in the sequence for a ventilator display screen with an alarm icon showing a first embodiment of our new design;

FIG. 2 is a front view of a second image thereof;

FIG. 3 is a front view of a first image in the sequence for a ventilator display screen with an alarm icon showing a second embodiment of our new design; and,

FIG. 4 is a front view of a second image thereof.

The appearance of the transitional image sequentially transitions between the images shown in FIGS. 1-2 and FIGS. 3-4. The process or period in which one image transitions to another image forms no part of the claimed design. The broken line showings of the images and display screen are included for the purpose of illustrating unclaimed portions of the ventilator display screen with an alarm icon and form no part of the claimed design.