Our project is a resort with number of guest rooms, spas, restaurants , etc
We are going with path 2 but there is a sentence under path 2 saying " During each day of the flush out period , ventilation must begin a minimum of 3 hours prior to occupancy and continue during occupancy"

The question is when the guestroom is occupied 24/4 how can we start ventilation 3 hours prior to occupancy each day?

Any clarification is greatly appreciated.