Scent Killer® Gold® Spray kill human odor so deer don't sniff and spook. This new, ultra-effective formula is effective on clothes and boots. Testing at Rutgers University shows that Hunt Dry® tech is 99% effective at stopping replicated human odor. Works wet or dry to kill odors and prevent new odors from forming. Use it hours, days, or weeks before your hunt. This Quart Combo includes 12 Fl. Oz. Filled Field Bottle and 32 Fl. Oz. Refiller Bottle.