You know very well that one person means one customer. As for infection more research was done on ventilation standards and their upgrading if necessary. It is

You know very well that one person means one customer. As for infection more research was done on ventilation standards and their upgrading if necessary. It is better to pay more for energy than not have a business at all. Businesses have to spend more on ventilation if they are to stay in business. The risk of infection can't be more than that of medical personnel who have to treat Covid patients if proper standards are applied.