Homebrew air filtration system

[Flinttim]

Been some questions here about air filtering in the workshop. Thought I'd maybe help some by showing a system I built some years back.  
 
 
The pics should self explanatory. It uses a squirrel cage blower (free from my neighbor) and filters from Home Depot. I use a standard furnace filter first and the the Micron filters behind it. Saves some bucks on filters.

[bjansen]

Very nice!

[Roy from Pa]

Very nice. When you stop to think about it, all an air filter contains is a blower unit with a motor to power it, and filters. You did very well, thanks for sharing.

[Flinttim]

The unit is mounted on the ceiling near my sander and bandsaw. When I'm hand sanding a bow with really fine paper you can actually see the dust being drawn up to the unit.

[44charlie]

does anyone know how far a shop vac can pull dust thru a standard size hose? i was thinking of extending the reach of my shop vac by using 1.5" pvc pipe, say 20' worth. forgot my physics.


thanks guys