Remote Controller for Oxygen Concentrator

FIG. 1 is a perspective view of a remote controller for oxygen concentrator showing my new design; FIG. 2 is a front view thereof; FIG. 3 is a back view thereof; FIG. 4 is a top view thereof, the bottom view thereof being a mirror image; FIG. 5 is a right side view thereof, the left side view thereof being a mirror image; and, FIG. 6 is a front view thereof, showing the state where the cover is slid. The broken lines shown in the figures are for illustrative purposes only and form no part of the claimed design.