FIG. 1 is a front perspective view of a fresh air ventilation system showing our new design;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is a left side elevation view thereof;
FIG. 5 is a right side elevation view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is a partial enlarged view taken from circle 8 in FIG. 1.
The dash-dash broken lines in the drawings depict the portions of the fresh air ventilation system that form no part of the claimed design.
The dot-dash broken lines in the drawings are included for the purpose of depicting the boundaries of the partial enlarged views of the fresh air ventilation system and form no part of the claimed design.