I read that as suggesting that the concentration of viruses in the dipping solution was intended to produce a coating comparable to someone who hadn't washed th

I read that as suggesting that the concentration of viruses in the dipping solution was intended to produce a coating comparable to someone who hadn't washed their hands much at all. I wonder how much energy (so to speak) has been put into using a strong vacuum, either by itself or with a blower, to dry hands. Filtering that airflow wouldn't be too difficult, though obviously more expensive.