A bathroom is the one place that needs proper ventilation for the odors to escape in time. Unfortunately, ventilation issues in the bathroom are very common.
Insufficient ventilation traps humidity, which causes the paint to peel sooner, even causing mold on the surfaces.
Ensure that you have a good quality exhaust fan and if you already have one, clean the vent and remove the debris properly before switching it on after the renovations.
Going for an exhaust fan with a timer is even better as it will ensure good dissipation of the odors after you leave the place. Look for the best bathroom shops in Coffs Harbour and buy an ideal exhaust fan.