Dust Collector with 303.98mhz remote?

Welcome to the forums, @diito !

The answer is quite likely yes, I’d say.
They are both within the RF range of the hardware, and unless they’ve got some weird signals / modulation, they should both have a pretty decent chance of working with a Bond Bridge (BD-1000).

For supported RF ranges at the hardware level:

All versions of Bond Bridge support OOK modulation, but if for some reason those devices are FSK, here are details related to modulation support at the hardware level: