The surface must be cleaned thoroughly and dried prior to spraying. The clean surface is coated with EcoDifesa using Electrostatic Spraying System with nozzle diameter 0.5 to 1mm. No of coating recommended is 1 or more depending on surface and concentration of pollutant in the building/ transportation vehicle. All surfaces that come in direct human contact such as washbasins, restroom surfaces, beds, instruments, furniture, glass windows, walls and floor are covered. Spraying on bare metals are not recommended and suggested to be covered before spraying. Occupants are allowed to occupy the building after 30 minutes to ensure the settlement of the airborne particles and the coating is completely dried.