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Automated cleaning of fan coil units with a natural detergent-disinfectant product

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Author(s): Liguori Giorgio | Bagattini Maria | Gallè Francesca | Negrone Mario | Di Onofrio Valeria | Triassi Maria

Journal: Annals of Clinical Microbiology and Antimicrobials
ISSN 1476-0711

Volume: 9;
Issue: 1;
Start page: 29;
Date: 2010;
Original page

ABSTRACT
Abstract Background Air conditioning systems represent one important source of microbial pollutants for indoor air. In the past few years, numerous strategies have been conceived to reduce the contamination of air conditioners, mainly in hospital settings. The biocidal detergent BATT2 represents a natural product obtained through extraction from brown seaweeds, that has been tested previously on multidrug-resistant microorganisms. Methods BATT2 has been utilized for the disinfection of fan coil units from four air conditioning systems located in hospital environments with a mean degree of risk. Samples were collected from the air supplied by the conditioning systems and from the surfaces of fan coil units, before and after sanitization procedures. Total microbial counts at 37°C and 22°C and mycotic count at 32°C were evaluated. Staphylococci and Pseudomonas aeruginosa were also detected on surfaces samples. Results The biodetergent was able to reduce up 50% of the microbial pollution of fan coil units surfaces and air supplied by the air conditioners. Conclusions BATT2 could be considered for cleaning/disinfection of air conditioning systems, that should be performed on the basis of accurate and verifiable sanitization protocols.
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