Cross post from EEV blog.
So, I Worked in electronics since 1950s, with lead solder 60/40, 63/37, and never used any precautions.
At 77 still going strong!
Jon window exhaust fan $25..50
4" electronic fan like Rotron, NMB with HEPA filter.
We use Hakko fume extractors.
For BeO dust, use face mask, gloves, face shield, respirator, NOT fume hood or fan
Dont worry be happy!
J