Powder collection cyclone / interceptor


I had the pleasure of visiting the Formlabs Berlin office last week. In their SLS print farm they are using cyclone dust collectors in between the Sift and the Vacuum. Great idea. So the powder collects in a container instead of in the expensive vacuum cleaner.

They have a delfin collector system £££££, and also DIY cylone collectors. I’ve seen cheaper collectors online. Has anyone tried using a DIY or cheaper one?
Thank you,