Floral Cooler & Store Facility - Arteflor–Madrid -Spain

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AiroCidePPT™ – Perishables Preservation Technology

AiroCidePPT™ contains the same NASA - developed technology that is used in a variety of AiroCide product lines. In addition to serving the floral and perishable preservation and food safety industry the AiroCide™ technology has been developed to kill/remove/eliminate airborne pathogenic and non-pathogenic microorganisms in vegetative and spore states (bacteria, mold & fungi, viruses and dust mites), allergens, odors and harmful volatile organic compounds (VOC’s) in air in a variety of commercial, government, and residential market applications including the medical healthcare industry (AiroCide™ is listed as an FDA ClassII Medical Device).


We conducted a clinical study of the AiroCide PPT™ airborne pathogen killing technology in the floral cooler and the store facility of Arteflor, major cut flower wholesaler in Madrid, Spain. The data supports the hypothesis that airborne mold levels would be dramatically lowered after 11 days of continuous operation of the AiroCide PPT™ systems. The results show an average airborne reduction of 99.99% inside the store and of 100% inside the cooler.


The store and floral cooler used in this study were approximately 180 m³ x 6 m³ in volume respectively. The test period consisted of eleven (11) days of air sampling in April 2005. A baseline air sample was taken in each test location in the cooler and the store on the 07/04/05, without the AiroCide™ units operating. On the same day, two (2) units AiroCide PPT™ strategically placed in the store (mod. ACS-50) and inside the floral cooler (mod. ACS-25) were switched on and allowed to operate continuously for eleven (11) days. Active samples were taken in the same two locations after eleven (11) days of continuous AiroCide™ use on the 18/04/05. All air samples were taken for future comparison.

Air samples were taken with an air sampler Aerotech6® on 4 x 90 mm plastic petri dishes. Samples were cultured on Sabour aud Chloramphenicol Agar plate by Centro Analítico Pozuelo, Madrid, providing the resulting measured colony forming units (CFU) per cubic meter of air. All agar plates were exposed to 0.5 l/sec. of air and a total measured air volume of 1000 l.


The Table 1 shows airborne reduction inside the store facility and the cooler of 99.99% and 100%, or an average of 99.999% in eleven (11) days.

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