1. Low-Level Disinfection: Uses agents like quaternary ammonium compounds for non-critical items. 2. Intermediate-Level Disinfection: Utilizes alcohols and iodophors for surfaces that may have come into contact with blood or other body fluids. 3. High-Level Disinfection: Employs chemicals like glutaraldehyde for items that touch mucous membranes but are not invasive.
