So, recently was in the hospital for a month. I had acute pnomonia, and it was so bad that they had to put me into a drug induced coma for a month and I was on a ventilator. I've recovered nicely, but for me anyways - I kinda need to take care of my lungs the best I can. Enough about that.
So the commercially available fume extractors don't really appeal to me. They just move the air around. I know that industral units are out there, but that is way outside my budget, requirements, and space.
I wanted to make my own fume extractor that vents to the outside. I think that I'm going to use some dryer duct, make a arm to support it, and build a fan into a box that sucks the air in, and then pushes it out the window.
For different work, I would like to control the fan speed. Higher for soldering, and maybe lower for say, fumes from glue drying. So my question is:
How can I speed control a 100-200 watt AC fan motor?