Texas Tech University’s Department of Biological Sciences evaluated American Air Scrubbers’ equipment for germicidal effectiveness in laboratory studies. The equipment tested was a special research machine that contained UV-C germicidal lamps and photo catalytic reactors. It has long been established that irradiation from UV-C lamps kills bacteria by direct exposure. A machine was developed to test the hypothesis that E. coli exposed to an air stream treated with UV-C light and photocatalytic reactors would be killed at a faster rate than would E. coli exposed to an air stream not treated with photocatalytic reactors. E. coli in both test and control conditions were maintained in the dark. The special test machine developed for Texas Tech exposed an air stream to photocatalytic reactors irradiated with UV-C light; then the air stream moved through a light-blocking filter into a dark (no light present) chamber. This stream of treated air was on the experimental side of the machine. The control side had a stream of air similar in volume and flow to that on the experimental side. The control side contained no photocatalytic reactors.

Cultures of E. coli were established on Petri dish plates with agar media. E. coli colonies on the agar plates were too numerous to count (TNTC) at the beginning of the test. Eighteen plates with E. coli TNTC were exposed, in groups of three, to the treated airflow in the dark chamber for 10, 20, 30, 40, 50, and 60 minutes and then removed to count surviving colonies of E. coli.

This study, and one other similar study, indicated that air exposed to UV-C light and photo catalytic reactors was able to kill growing E. coli cells maintained in the dark and protected from UV-C irradiation. Colony counts of E. coli were initially TNTC, but declined to near zero after 60-minute exposure.

Similarly, American Air Scrubber's™ technology treats air flowing through the ducts of residential and commercial heating and air conditioning equipment and kills bacteria residing in, or passing through, the ducts.

Please contact Dr. Nick Parker for more information
parker@americanairscrubbers.com
806-438-5598 cell phone

Germicidal Activity of American Air Scrubber’s equipment will allow you to use your existing A/C system to disinfect your facility!

American Air Scrubber technology is patent pending.