Air Purification Unit

FIG. 1 is a perspective view of the air purification unit;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

Broken lines shown in the figures depict portions of the air purification unit that form no part of the claimed design.