[geeks] DIY project, maybe? (Cheapo bedroom air purifier)

[Bill Bradford]

On Mon, Apr 19, 2010 at 02:31:53PM -0400, Patrick Giagnocavo wrote:
> So my thinking is this:  build a wooden box containing some big but
> quiet fans, and then build it so that I can use a common sized furnace
> filter.  Add a pre-filter (simple plastic mesh) and space to hold an
> activated carbon filter in front of the HEPA filter, and I should have
> something that over the long run will be much cheaper.
> Anyone ever done something like this?  My concern is the fans, actually,
> they need to be sized properly .

I have a 20"x20" AC filter taped to the back of a 20"x20" box fan.  You
could add HEPA/charcoal filters as needed.

Bill

-- 
Bill Bradford 
Houston, Texas