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Evaluating the Effectiveness of Airocide NASA-Developed PCO System in Eliminating Mold and Bacteria in a Flower Shop Environment

Introduction

Airocide photocatalytic air purifiers contain the same NASA-developed technology used in a variety of Airocide air purifying product lines. In addition to serving the floral and perishable preservation and food safety industry, the 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 (VOCs) in air in a variety of commercial, government, and residential applications including the medical healthcare industry (Airocide air purifiers are FDA Class II listed medical devices).

Camelback Flowershop interior showing flower cooler with Airocide air purification system installed

Summary

Using a SAS 360 impingement air sampling machine various air samples were collected from inside and outside the main cooler located at the main facility in Phoenix, AZ and sent for analysis to the lab. Hygienas bioluminometer ATP tests were performed on different surface areas to establish a baseline on RLU counts and presence. An Airocide GCS 25 unit was installed inside the main cooler room as well as a remote-monitored Air Quality Meter (AQM) that will calibrate automatically inside the main cooler room for 7 days after installation.

All ceilings, lamps, glasses, doors, and shelving systems as well as 4 work stations were fully dusted and cleaned prior to treatment with PCO Protective Control within the inside of the main cooler room.

Conclusion / Recommendation

Out of the 3-stage protocol recommended for Camelback Flower shop, stages 1 & 2 have been completed. The 30-Day Post-Installation, stage 3, of the protocol is scheduled next and baselines have been established, and in stage 3, air sampling will be performed.

Airocide air purification system installed in floral cooler showing UV treatment chambers

Results

Location Improvement % Test Type Result 1 Result 2
Small Floral Cooler Inner Cabin 95 RLU 1444 68
Front Desk Keyboard 94 RLU 2037 128
Main Cooler room inner wall panel 95 RLU 1263 58
Main Cooler room inner glass panel 94 RLU 876 52
Workstation table copppertop 95 RLU 2236 116
Small Floral Cooler Inner Cabin 26 CO2 ppm 1021 755
Main Floral Cooler Inner Cabin 86 CO2 ppm 2614 367

Analysis

Lab results from the air samples taken, indicate what was initially suspected would be present in the cold room environment.

The lab results also confirm the presence of fungi, bacteria, and other affecting pathogens. The samples captured outside of the cold room, including the lobby, customer, and staff areas also show the presence of the same pathogens and additional strains of fungi.

After 10 days of the initial installation, air monitoring readings show positive improvements in all the protected and controlled environments.