The “Who’s Responsible” memorandum, item 2.13(d) (below) says fans mounted in a false ceiling are owners corp responsibility.However, exhaust fans mounted inside the lot are owners responsibility, according to 2.14(d).
2.13 General – OC responsibility
d. Exhaust fans mounted within “Structural cubic space” e.g. communal ducting or a
false ceiling which is designed to carry communal pipes etc or outside the lot.2.14 General – Owners responsibility
d. Exhaust fans inside the lot.