i use a dust b gone as well. I'm happy with it, esp. since its washable and essentially will last forever if you take care of it. Still though, I would not consider turning at all without a dust collector and air filtration system. If you do any research at all on cocobolo, tulipwood, zebrawood, zircote, ebony, makore, mahongany, and the list goes ON and ON, you'll find that almost any wood you work with is toxic one way or another.
Last year I turned about 75 tulipwood pens for a corporate order, and the first day I got poison ivy all over my forearms (no DC). I did some research and found the tulipwood is HORRIBLE for your health, especially in fine dust form like sanding. I hooked up a DC with a hood at my lathe and I haven't had a problem since, with any wood. If you get even a small dust collector and run it to your lathe, it will at LEAST get the dust away while you're sanding. Then the respirator is not so critical, b/c you're sucking most of it away from you to begin with.