Hello, our baby is due in January and we live in hot Queensland. Will it be okay to use the ducted air and dress our newborn accordingly? I’m concerned an oscillating fan will still be too warm for a bub. Thank you!

Red Nose does not recommend a specific room temperature, or rather you dress baby to the room temperature.
It is ok to use air-conditioning or a fan for cooling or circulating air, but not specifically recommended to control room temperature for baby to reduce the risk of Sudden Unexpected Death in Infancy (SUDI)

Overheating (hyperthermia) can be a risk for babies (as well as hypothermia)
Red Nose does not recommend the use of cooling or heating baby’s room, but if you do use this, then the same principle applies when dressing baby - dress according to room temperature.
Babies regulate their body temperature via their head & face, so it is important, that baby’s head & face remain uncovered.

Red Nose has the following information.
Dress baby for sleep and add/remove lightweight blankets (or clothing) to ensure baby’s back or tummy feels comfortably warm to the touch.
https://rednose.org.au/article/bedding-amount-recommended-for-safe-sleep

Babies control their temperature predominantly through their head and face. This is why we recommend that you put baby to sleep on their back with head and face uncovered.
Red Nose does not recommend a specific room temperature for baby’s sleep. This is because there is no evidence to show that maintaining a specific room temperature prevents sudden infant death.

As long as baby is put down to sleep on their back, and that baby is dressed appropriately for the room temperature – not overdressed or under dressed – with their head and face uncovered, you can feel reassured that you are protecting baby from overheating.
https://rednose.org.au/article/how-to-dress-baby-for-sleep

It is not necessary to monitor the room temperature or to leave the heating or cooling on all night, as long as the baby is dressed appropriately for the room temperature: Dress baby as you would dress yourself – comfortably warm, not hot or cold. A good way to check baby’s temperature is to feel the baby’s back or tummy, which should feel warm (don’t worry if baby’s hands and feet feel cool, this is normal).

https://rednose.org.au/article/protecting-baby-from-overheating-during-sleep

https://rednose.org.au/article/room-temperature

https://rednose.org.au/article/what-is-a-safe-room-temperature-for-sleeping-baby