Can I wear an F30 with my AirMini?

Yes, you can wear the F30 mask with the AirMini.

The AirMini works with a select range of ResMed AirFit and AirTouch masks, such as the AirFit F30, AirFit 20 series of masks, AirTouch F20 and AirFit P10 for AirMini.