I already mentioned this a long time ago. It does not depend on whether it is Nylon or PTFE… because what produces NDBA is the plastic assembly. On syringe filters from “all” manufacturers and “all” kinds of syringe filters that I know of have NDBA. The more pressure you put on the filter, the more material you will extract.
I have not found a solution. I talked to a lot of marketing people and they didn’t even know they had this problem!!.. I also tell you that it depends on the manufacturer and model, some have more than others.