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New purifier mimics open air to combat coronavirus

Airora P200 wall-mounted crop
HTL’s Airora air purifier is wall-mounted and will be commercially available this autumn.

Hydroxyl Technologies (HTL) has developed air decontamination technology to provide up to a claimed 99.9% protection from the aerosol transmission of SARS-CoV-2 and its variants in internal spaces.

Suitable for use in indoor hospitality venues, the new device is designed to create a continuous cascade of hydroxyl radicals, which occur naturally outdoors, to deactivate dangerous indoor airborne viruses and bacteria.

The Airora products will be available as wall-mounted units this autumn, aimed at boosting societal and economic recovery and the preparedness for any future viral events.

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To rapidly scale up commercialisation and production of the units, HTL has engaged Opus Corporate Finance to raise £5m capital from new investor(s).

The naturally occurring abundance of hydroxyls makes outdoor air much safer in the fight against airborne pathogens like SARS-Cov-2, says HTL. The indoor creation of hydroxyls from the Airora products can continuously decontaminate aerosols in an enclosed space in minutes.

The technology produces hydroxyls and trace elements of the same natural building blocks to create further hydroxyls, ozone and linalool, an oil given off by plants. The linalool reacts with the ozone to create a ‘hydroxyl cascade’ throughout the indoor space. This condenses onto anything it encounters, including aerosol droplets and particulates, to neutralise viral or bacterial pathogens, such as coronaviruses, MRSA, C.difficile, E-coli, norovirus, and flu virus.

HTL’s hydroxyl cascade technology was developed and tested for over 10 years at research laboratories including the Health Protection Agency (HPA) at Porton Down, now part of PHE, and the UK’s Building Research Establishment (BRE).

In tests, the Airora technology reportedly eliminated aerosols of MS2 Coliphage, which is used as a surrogate in laboratory research into virus contamination as it is tougher to destroy than most pathogenic viruses, including SARS-CoV-2, but is harmless to people.

The hydroxyls react with the lipids and proteins in the thin, delicate cell membrane of a virus, causing it to lyse or break down, damaging the lipid envelope and capsid protein shell around the pathogen. This deactivates the protein it needs to enter human cells. Hydroxyls also penetrate the interior of the virus and disrupt its DNA, rendering it harmless and unable to infect humans and animals.

Alan Mole, inventor and CTO of Hydroxyl Technologies, said: “Tests have included both airborne and surface challenges, but droplets and aerosol transmission are now recognised as the principal source of viral infections from SARS-CoV-2 and variants – this is where the real-time performance of the Airora technology shines. In tests, it killed all airborne pathogenic viruses and bacteria in minutes, and it does so by attacking the aerosols, there is no need to suck them through a filter.”

Tags : air purifiersafetysanitisation
Clare Nicholls

The author Clare Nicholls

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