Quest to rid air of bugs and odours

Published: 13-Sep-2005


UK company Quest International has developed an air management system that is claimed to be capable of killing 99.7% of airborne bacteria and viruses, including MRSA and anthrax.

Housed within a small unit similar to a standard air-conditioning unit, the AirManager harnesses ozone to kill contaminates in a single cycle, purifying air which could carry potentially fatal bacteria and viruses. The system has been developed by David Hallam, director of R&D at Quest, who was prompted to do so when a relative recovering from a colostomy left some "unpleasant odours" in the nursing home where he was a resident. "The solution to my relative's problem and that of his fellow residents was fairly simple," said Hallam, "but since then we have been developing the AirManager technology for a wide range of markets, including food technology, laboratories, hospitals and healthcare." The system uses Closed Coupled Field Technology (CCFT), a transient "force field" process that creates ozone in a way that retains its most powerful properties. It is able to destroy rapidly a wide range of contaminants, including bacterial, fungal and viral, but is harmless to humans. One of Quest's larger units is capable of handling air flows of up to 60,000ft3/hour, achieving a single-pass kill rate of 99.7% of biohazards and removing particles down to 0.1µm. These speeds and airflow filter rates, which significantly exceed the 0.05 metres/second achieved by conventional HEPA filtration, are possible through the combination of CCFT with the high airflow filtration (HAF) system.

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