Surface disinfection Design: Benzalkonium chloride Area of use: Rodalon surface disinfection spray, aqueous solution of 3 different quaternary ammonium compounds. Rodalon is sprayed on and must work for at least a few minutes. Surfaces that come into direct contact with food must be rinsed with water afterwards. For long-term effect outdoors, Rodalon must work for min. 4 hours. Rodalon must not be mixed with soap, as the effect is reduced.