3D Printer Air Scrubber/Neiko R-621 Air Flow Test
Simple, very unscientific test of the the air flow rate moving through a Neiko R-621 Respirator filter (can be found on Amazon), using a Delta PFB0612UHE High Static Pressure Axial Fan Motor.
The Anemometer used was a Amprobe TMA40-A.
The idea of using a respirator filter with a high pressure axial fan motor comes from Rod Laird. You can find more details below.
http://www.thingiverse.com/thing:125264
Many thanks to Rod for his great idea and design, even though I don't think it works very well in many cases. :-)