What is “the mist” they spray in China?
There’s a lot of questions surrounding “the mist”, what it is and what it does. A reasonable speculation VW have come across is Virkon S (or comparable). With optional aerial dispersion equipment similar to what we see in China, their website describes Virkon S as:
“The Premium Broad Spectrum On Farm Biosecurity Solution
Virkon™ S is the breakthrough disinfectant formulation that defines on farm biosecurity. With powerful, proven performance against over 500 strains of viruses, bacteria and fungi including Foot and Mouth Disease (FMD), Avian Influenza, Salmonella and Campylobacter, Virkon™ S is selected by governments worldwide for Emergency Disease Control.”
Product Page and How to use Virkon S to see aerial disinfection gear.