Building a Cyclone Vacuum Cleaner

Building a baffeled cyclone that can be used with a shop vac or even a standard vacuum cleaner to use it as a shop vac or save on filter bags. The cyclone unit cost around 15 euros to build, bucket included. It is made from wood scraps and standard PVC pipes. It filters most of the debris out of the air before it can even enter the vacuum. Demonstration: https://www.youtube.com/watch?v=VewmOOD_gHk