Fast surface disinfection with COUNTERFOG® SDR-F05A+

• Published in: European physical journal plus Vol. 136; no. 4; p. 393
• Main Authors: Pérez Díaz, José Luis, Sánchez García-Casarrubios, Juan, Méndez-Vigo Carranza, Pablo, Ruiz Navas, Elisa María, Iliev Petrov, Mihayl, Alcamí Pertejo, Antonio, Vázquez, Ángela, Rastrojo, Alberto, Archilla, Victor, Sánchez García, María, Fernández Perea, Gonzalo
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01-04-2021; Springer Nature B.V
• Subjects: Aerosols; Applied and Technical Physics; Atomic; Complex Systems; Condensed Matter Physics; Decontamination; Decontamination and Developments of the Decision Support Systems in Case of CBRNe Events; Disinfection; Disinfection & disinfectants; E coli; Environmental conditions; Environmental impact; Focus Point on New Technologies for Detection; Fog; Liquid flow; Mathematical and Computational Physics; Microorganisms; Molecular; Optical and Plasma Physics; Physics; Physics and Astronomy; Protection; Regular Article; Theoretical; Thin films; Velocity
• DOI: 10.1140/epjp/s13360-021-01353-8
• EISSN: 2190-5444

COUNTERFOG® has been proposed as a rapid decontamination and disinfection technology that uses dynamic submicrometric-disinfecting fog cones. When projected onto surfaces, they create a micrometre-thick film of disinfectant minimizing the use of liquids and the impact on environment. The extremely thin film is intended to be enough to cover and kill microorganisms and simultaneously thin enough to evaporate in a few minutes—depending on the environmental conditions. In the present work, experimental tests were carried out to verify this hypothesis. These include a physical characterization of the fog in the cone, a measurement of the liquid flow projected on surfaces as well as disinfection tests with a series of microorganisms. In addition to these results, operational recommendations are derived to ensure disinfection reliability.