HYGI-Metal vs Stainless Steel according to Professor Bill Keevil

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As Professor Keevil states, one of our concerns is that when people cough or sneeze or even speak loudly, they produce thousands of particles which eventually all settle. In these times, some are going to contain the Covid virus. 

Tests show that HYGI-Metal kills the Covid virus. 

We already know that copper alloys kill a range of superbug bacteria, as well as viruses, and the HYGI-Metal, being a similar composition, also has these properties. So, it doesn't just inactivate or kill the Covid-19 virus, but is active against superbug bacteria.

The key difference is that the HYGI-Metal looks identical to stainless steel, which means now there is an alternative metal available for architects and others who want to keep the 'stainless steel' appearance, but actively kill the Covid virus. Additionally, the composition of the new HYGI-Metal alloy means it's tougher, more durable, and doesn't tarnish as easily.

Further, stainless steel is notoriously difficult to clean, at least forensically. It may look nice and shiny, but even after cleaning viruses and superbugs can survive. Its composition allows them to hide in pits and crevices, not seen by the naked eye, but visible under a microscope. Tests have shown that viruses and superbugs can survive over a month on stainless steel. By contrast, if you put them onto the HYGI-Metal, it's inactivated or killing them completely within two hours. 

Following advice from Professor Keevil, we advocate installation of the HYGI-Metal and regular cleaning as the most effective way of combatting the spread of Covid-19 via touch surfaces. The metal itself works 24/7 against the virus, and unlike coatings or coverings, any accidental scuffs or scratches do not effect its efficacy. It remains a consistent and long-term killer of the virus. 

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Testing by Southampton University- see graph- shows that COVID-19 died on HYGI-Metal, with lots of the particles inactivated by 90 minutes and all particles completely eradicated in 120 minutes. Stainless steel (as used on most products) was the inert control.
The US Environmental Protection Agency have said it expects products to be able to inactivate 99.9% of SARS-CoV-2 within two hours to be able to make antiviral claims.