Working in tandem with your dust collector, the Vortex Router Table Dust
Collection Cabinet fully encloses table mounted routers to catch and remove
messy dust. Dust is pulled down through the bit opening and into the
specially vented cabinet where chips and dust are cleared completely.
Continual air flow helps protect your router from potential overheating
during extended runs.
Being aggressive in cleaning dust from the air in your shop doesn’t necessarily mean you have to spend a ton on new equipment.
Here's the straight scoop from Rockler.com. Tips and recommendations from a company that knows.