Use a ventilation system,and a mask.The best you can afford,or make.My lungs are shot,and I think that a lot of it was when I first started to pour,my basement would have a constant haze,and coughing was the general rule.There was no vent.STUPID,STUPID!!!:eek:I always use a vent at least,Even when I made the CD about tube dipping I had to hollar over the venting.I always use a vent,or dip outside.Most of the time I have the stove vent going,and a gentle fan coming from behind me.Works for me.