The problem to me with all these ingeniously found devices is that they
themselves are uncalibrated. They just produce an aerosol stream which will
be of varying intensity depending on where measured.
Going back to an earlier suggestion of fine particle might be more useful.
Getting some fine silica (3M) and shaking up a known amount in a box should
give a constant particle count if measured in a controlled time. Probably a
problem with static adhesion to container sides to overcome, maybe they
could be in a liquid... Brownian motion in either case would give a uniform
dispersal

Best Wishes
 
 
 
Mike

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Drew meyer
Sent: Wednesday, August 28, 2013 6:40 PM
To: [log in to unmask]
Subject: Re: [TN] Blowing Smoke

Craig, 

I have one of these.  Probably won't give Wayne what he needs they are
essentially a large candle wick.  You light it let it burn for a bit and
blow it out.  Following this it generates smoke for quite some time.  They
are great for checking air flow or air leaks but there is no control of the
volume of smoke or particle count they would source.

How do I know this?  I used one to find the leaks in the floor that needed
to be sealed for my sub-slab depressurization system to get rid of the Radon
in my home.

Drew



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