- Mon Mar 07, 2011 6:44 am
There are several things you'll need to determine before anyone can provide specific guidance, including;
1) For how much of the ~2 square meter area are you looking to provide fume extraction?
2) How much convenience are you willing to give up for protection from the fumes? At one extreme, there's your present practice. At the other extreme, you could work in a glove box.
3) What do you mean by "fume extraction"?
a) What are the size and composition of the particles?
b) From where are they emitted?
c) What, if any initial velocity do they have?
d) Are they mixed with a gas that's of different density than the room air? (The difference in density can be due to any of several factors, including chemical composition and temperature.)
e) With what efficiency do you need to extract the fumes?
4) In which direction do you want the capturing airflow? The obvious choices are upward, rearward, and downward.
5) To where do you want to extract the fumes? For example, do you want to filter the fumes from the air and return the air to the room? Do you want to exhaust the air with the fumes to the outside? Each approach has advantages, disadvantages, costs, and regulatory concerns.
If you provide some answers, I'll try to be helpful.