How many air changes do I need?

According to the new formula, high-performance sales will have to be ventilated at a speed, i.e. 7.5 cfm per person plus 3 cfm per 100 sq m. This means that for a house of 2400 sq m with 3 bedrooms, the minimum air flow of the ventilation equipment increases from 89, 54 cfm to 102 cfm.