Update: RichardL posted a better deal here https://www.ozbargain.com.au/node/581524
This is a deal for the older version of the Dyson Pure Hot+Cool Link Purifying Fan Heater (HP03).
The newer version HP04 is obviously better but more expensive.
Difference from what I understand is a fancy sensor and better airflow. I think the filter is similar but HP04 is better with odours and smells.
There also could be better deals in a few weeks (Black Friday) so might want to consider that before buying. Have seen cheaper deals than this, some with extra filters as well.
Dyson HP03 RRP $799
I have the hp03 and i hate the nose it makes. Can’t even put it in a bedroom.