US D427299 S
FIG. 1 is a perspective view of a rollably positioned adjustably directed, clean air supply assembly unit;
FIG. 2 is a left side view thereof;
FIG. 3 is a right side view thereof;
FIG. 4 is a back side view thereof;
FIG. 5 is a top side view thereof; and,
FIG. 6 is a bottom side view thereof.
The cross-hatching in FIGS. 1 and 6 represents a mesh screen and is understood to extend uniformly throughout the area represented.