The mushroom and plant tissue culturing communities have lots of good DIY laminar flow hood designs. Here's two great guides:
As for
On Wednesday, July 16, 2014 9:06:33 AM UTC-7, John Griessen wrote:
-- http://www.fungifun.org/English/Flowhood
http://www.orchideenvermehrung.at/english/lfh/index.htm
As for
On Wednesday, July 16, 2014 9:06:33 AM UTC-7, John Griessen wrote:
On 07/16/2014 02:55 AM, Matt Harbowy wrote:> Why not figure out how to do it better and safer and cleaner? Wouldn't that be a much
better accomplishment?
Yes, that would be a great thing to discuss. Usually does not get much air time here though.
I have plans to make a shippable some-assembly-required laminar flow bench without a
ducted building exhaust as a product and include a particle counting method with it -- for cheap.
The particle counting is the essence of doing something research worthy with it, so you can qualify it for use
for a purpose and predict whether particles will land on your Petri dish for example.
So -- any suggestions on particle count estimators for qualifying HEPA filtration statistics?
I know the providers of filters say they test them by spraying the outside or intake side with glass sphere
dust, then count after collecting for a time at the output side. Anyone seen that done? Know what's needed?
Do they work like a spectrometer to figure out particle size as in the blueness of small smoke particles?
Are they based on digital camera CCD chips, or CMOS camera chips?
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