A standard 18" x 45" Tac Mat (tacky/sticky floor mat) is a multi-layer adhesive mat designed to trap dust, dirt, and fine particulate matter from footwear and cart wheels at room entrances. Featuring a stack of peel-off polyethylene sheets coated with a tacky adhesive, each sheet is numbered sequentially to track usage and allow quick disposal once saturated. Its 18" x 45" footprint provides a compact, targeted stepping zone ideally sized for standard doorways, cleanroom airlocks, laboratory entrances, and temporary containment areas in commercial facility maintenance.