Floral Cooler - Coflores–Madrid -Spain

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AiroCidePPT™ – Perishables Preservation Technology

Perishables Preservation Technology AiroCide PPT™ 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 inside the facility of Coflores, major cut flower wholesaler in Madrid, Spain. The data supports the hypothesis that airborne mold levels would be dramatically lowered after six (6) days of continuous operation of the AiroCide PPT™ system. The results show an average airborne reduction of 96.01% inside the cooler in six (6) days.


The floral cooler used in this study was approximately 125 m³ in volume. The test period consisted of six (6) days of air sampling in April 2005. A baseline air sample was taken in each test location in the cooler on the 12/04/05, without the AiroCide™ unit operating. On the same day, one (1) unit AiroCidePPT™ placed inside the floral cooler was turned on and allowed to operate continuously for six (6) days. Active samples were taken in the same two locations after six (6) 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 Sabouraud 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 cooler in two different points of 98.52% and 93.50%, or an average of 96.01% in six (6) days.

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