TM has had recent posts about both soldering and desoldering. If you’re doing either, the Edsyn FXF15 FUMINATOR can help to remove the potentially toxic fumes. You can get one in blue, green, or red from Edsyn for $27 (a 75% discount according to their website). Shipping costs seem a bit high, but maybe you can find some other things you need to rationalize the shipping. This bench-top fume extraction system draws fumes away from the operator, and comes with front and rear charcoal-impregnated filters, a 12 VDC wall transformer, a single adjustable arm, and is ESD safe. The FXF15 weighs 1.09 lbs, and is 5.5″ W × 9″ H × 5.5″ H. It appears to have a fan system similar to the Edsyn FXF11 (available from Amazon), but without the solder-peg stand and dual adjustable arm.
Instructables has several DIY alternatives (here’s a filtered version, for example).