The common areas have an identical filtration mechanism in place, with the exception that the air flowing in is 100% fresh air from outside.
The kasị mma mmetụta na-enweta mgbe unit na-eji na a ọma ventilated na akọrọ ebe, ebe unit-ewe ke 100% ọhụrụ ikuku si n'èzí dịghị re-mgbasa emee.