Wildlife Research Center Super Charged Scent Killer Power Pack is a must have for any hunter who spends a lot of time in the woods. It contains both a 24-oz. spray and 42-oz. refill bottle. Scent Killer is an amazing, odorless breakthrough that helps kill human scent on contact. Simply spray Scent Killer on your clothes to help prevent human odor from forming a detectable gas. It works all day, and when liberally applied, it permeates your clothing for scent-killing power.