Generally good idea and I'd say int he grand scheme of things this is good advice.
But one counter point to consider, in highly sterile environments we have shown much high incidence of autoimmune disease. When you have too good indoor filtration, especially when it is not during a pandemic, you may cause a situation where you make society more vulnerable and at risk for the next pandemic.
Right, glad we agree, exactly as Ii said, high risk high-traffic areas make sense, intuitively, to clean the air while lower risk areas not so much.
But as I said the problem is we are mostly speculating here as we dont have good studies to tell us where the line shoul be in reality, so we have to make these sort of guesses.