When should biocidal products be applied in the cleaning process?

Biocidal products should be applied after removing surface contamination to be most effective. The primary reason for this sequence is that biocidal agents are designed to eliminate or inhibit the growth of microorganisms, including mold. When contaminants such as dirt, dust, and organic materials are present on a surface, they can physically block the biocidal agent from adequately contacting the microorganisms. This means that if biocides are applied before or during the cleaning process, they may not reach their target effectively due to the protective barrier these contaminants create.

By cleaning the surface first, all the visible dirt and organic matter are removed, which allows for a more direct and effective application of the biocidal product. This ensures that the biocide can penetrate and interact with any remaining microorganisms thoroughly. Remember, the effectiveness of biocides depends on their ability to contact pathogens, which is maximized when surfaces are free of debris and contaminants.