US D439644 S1
FIG. 1 is a side and top perspective view of a contamination control breather showing my new design;
FIG. 2 is a side elevation view thereof;
FIG. 3 is a side and bottom perspective view thereof;
FIG. 4 is a top plan view thereof; and,
FIG. 5 is a bottom plan view thereof.
The broken line showing of environmental structure in FIGS. 1-3 and 5 is for illustrative purposes only and forms no part of the claimed design.