Optimizing Textile Disinfection in Hospital-Associated Infections Using Gaseous Ozone
2025
Francesco De Caro | Federica Dell’Annunziata | Oriana Motta | Nicoletta Capuano | Antonio Faggiano | Leonardo Aulisio | Matteo Tomeo | Emanuela Santoro | Giovanni Boccia | Mario Capunzo | Giuseppina Moccia | Veronica Folliero | Gianluigi Franci
Healthcare-associated infections (HAIs) pose a significant risk in clinical settings by extending hospitalization times and increasing healthcare costs. This study aimed to evaluate the effectiveness of gaseous ozone, generated by an automatic rotary dispenser, in disinfecting hospital fabrics contaminated with common HAI-related pathogens. The antimicrobial efficacy of ozone was tested on cotton, polyester, and blended fabrics artificially contaminated with Staphylococcus aureus, Escherichia coli, and Candida albicans. The fabrics were exposed to ozone treatment cycles of 25 and 45 min. Additional tests were conducted on layered fabrics to assess ozone penetration into folds and seams. A 25 min ozone exposure significantly reduced the microbial load on all tested fabrics. A 45 min cycle resulted in an almost complete elimination of the tested pathogens. Ozone also effectively disinfected inner fabric layers, indicating its ability to reach areas typically resistant to conventional cleaning methods. Gaseous ozone demonstrates high efficacy as a disinfectant for hospital textiles, offering thorough decontamination across various materials and fabric structures. This technology represents a sustainable, residue-free alternative to traditional disinfection methods and promises to reduce the transmission of HAIs in healthcare environments.
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