Re: [DIYbio] Re: low cost positive pressure laminar flow HEPA filtered box

On 01/28/2015 11:31 AM, Ilya Levantis wrote:
> you would probably need some huge fan or an array of leafblowers to actually push enough air through them, and by that point the
> actual particle catching efficiency would probably not be as effective.

Sebastian's mention was use a clear plastic box. I bet that works with the usual low flows of the
air purifier HEPAs.

One way to use low flow is by having the flow go down and out, and the exit is between the suspended edge of the box
and a table top. The exit could be just enough to get hands in.

Otherwise, if the usual box with one side open is used, hang a clear screen from the front open edge down to just have
1/4 of the front open -- also enough to get hands into. Then you use less flow, smaller filters.

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