I keep checking your post in the hope that someone will reply. I
am also considering the Hakko FA-430 fume extractor, but can't find
anything more than 2 review on Amazon. Can anyone offer an
opinion? The technical specs are a little fuzzy.... I have
researched fume extraction and ventilation repeatedly online, and I
am never satisfied that I've found a good solution.
Ductless ventilation, as in recirculation, fume extraction and air
purification is possible but to do it properly, ie to safe to use
levels is quite beyond the resources of anyone in this trade.
Its done as you will realise in Nuclear submarines that stay
submerged for 3 months at a time and of course on the international
space stace, to give you just 2 examples.
Yuo need to look at the 2 main types of air polution in a closed
system such as you plan to use.
The easy one to solve is the particulate contaminants, from
polishing ,sanding and other processes that make solid and liquid
these can be filtered out with the right type of filters. your nose
is just one example of a filter. Thats designed to filter out
particulates and is also a sensor telling you when to run!.
The second is much more difficult, thats the removal of gases
produced in soldering, melting and burning out of investments.
Activated charcoal will do it, but you would need kilos of the
stuff, with the right monitoring and gas analysis kit telling you
when to change the charcoal, which costs thousands of dollars to do
to safe levels.\ no, you will need to extract these fumes and vent to
an outside airway, replacing what you remove with fresh air from
somewhere that cannot suck in what you have just blown out. Theres no
You cannot risk you health on a dailybasis with these gases.