Making Dusty Air. Qualifying Dusty Air Filtering.

Summary, Make A Dusty Air System

The Dusty Air test system is WHAT EVER WE CAN FIRST MAKE.
We are going to move flour (whole wheat?) into air.

Details

The "Gravity-Feed Dual-Action Airbrush" approach.
Use an artist air brush.
Example:  https://www.harborfreight.com/03mm-gravity-feed-dual-action-airbrush-59292.html
A pressure regulator is probably needed.
A hose from the regulator to the air brush may need to be purchased separately.

A PVC hose goes over the output nozzle. Length TBD  but perhaps 1 meter.
Put flower (1/8 t or full) into the paint cup.
Verify dusty air blows out of the 1 meter PVC hose.
Check if the system can expel all of the dust with out clogging. 
This would be the first success.

Evaluate The Dusty Air

Next Catch the dust.
Repeat the experiment above but catch the dust.
Put the end of the PVC hose into some container where the dust will fall out of the air stream.
A big bucket with a lid and a small hole.
The PVC hose goes into the bucket at some some controlled location. Document the location.
Measure the volume / mass of the input dust and the output dust.
Report on dust losses

Test Dusty Air into a filter(s)

Finally put the corkscrew filter inline and test with dusty air.
Measure the volume / mass of the input dust and the filtered output dust and the dust that went straight through (uncaptured).
Report the results for the specific corkscrew version / parameters.

Other experiments.

Make a non corkscrew filter against which to test the dust source and separation and our measurements processes.