On: The Cuboid: A DIY air purifier that's better than ...

[rainbowzootsuit]

A centrifugal inline fan is what would be the most common to look for.

They should list a CFM at Inches of Water Column in the 1/4 to 1/2" range to be considered "high static" pressure.

Those blowers from the other comment are like for your iron smelter.