The VIP lounge provides complimentary refreshments.
Tips
memory
候 (to wait) + 机 (machine, here "airplane") + 室 (room), literally "a room to wait for a plane." The same 候 in 等候 (to wait), 候补 (alternate/standby). Compare with 候车室 (train/bus waiting room).
usage
More modern signage often uses 登机口 (boarding gate) for the specific gate area and 候机厅 (departure hall) for the larger pre-security or post-security space, with 候机室 being a slightly older general term.
