Yes, pepper spray is effective and used to incapacitate an attacker to allow you enough time to get away. When the product is pressed a short burst of pepper spray provides immediate intense pain and severe inflammation of the membranes. This forces the eyes to swell shut by the excessive tearing and the respiratory tract becomes inflamed causing breathing to be difficult. This should disable an assailant for up to 45 mins with severe coughing, choking and wheezing. The objective is to spray your assailant and run away for help.