That is outrageous if true. An airborne virus is best treated with ventilation (i.e. opening windows). Surface transmission almost never happens [1]. The irony of course being that having a cleaner go in and out of rooms poses much greater risk of spread.
[1] COVID-19 rarely spreads through surfaces. So why are we still deep cleaning? https://www.nature.com/articles/d41586-021-00251-4