Kitchen Range Hood 2

Having said all I did on the Kitchen Range hood, there is another approach, which is probably better.
Here is the link:
http://www.drexel-weiss.at/?p=f3is49j-f0is1l132j-f1is27l75j-f5is3j-lng1-l75
This is a company specializing in energy and ventilation systems for Passive Houses.  Basically, they are saying that a kitchen needs no special exhausting - the ventilation system will suffice.  It does, however, need a range hood for the purpose of removing the fat from the stovetop fumes.  they are not more explicit than that, but I think it means a range hood with grease separators, which just sends the cleaned, degreased and desmogged air back into the kitchen for the ventilation system to perform the final cleanout.  What a simple (and attractive) approach!  Will work to find out more about this.
LT