Quest Mall, one of the largest shopping malls in Kolkata, India,...

Quest Mall, one of the largest shopping malls in Kolkata, India, which has a gross leasable area of 65,000 square metres and hosts luxury retail and fine dining, has started to use Zoono.

https://timesofindia.indiatimes.com/city/kolkata/malls-tackle-virus-with-tech-tweaked-trial-rules/articleshow/76487275.cms

At Quest, the mall is using a very different technology to destroy the virus - a colourless, odourless, non-leaching liquid called Zoono. "The liquid sprayed does not contain harmful chemicals. When applied to a surface by spraying, wiping or fogging, it leaves behind a mono-molecular layer that permanently bonds to the surface. These molecules are antimicrobial, silane-based polymers that form a barrier of positively charged microscopic pins. These attract and pierce negatively charged pathogens. The pins rupture the cell walls and causes the pathogen to break up with lethal effect", said Quest Mall vice-president Sanjeev Mehra