...does anyone sell a complete unit? Something that fits in a duct. I have an idea that would require a fan. Due to limitations in the electricity supply at the intended location I need an alternate energy supply. There is plenty of compressed air though.
More or less it is a vent hood over a rubber mold at a friend's shop. Going to set it up on a trip-switch so the mold opens the fan comes on and sucks the peroxide fumes up. Then a timer kicks the valve shut so there is no draft over his hot mold.
The rubber is a thermoset EPDM material, it is injected "cold" into a "hot" mold where it cures. When the mold is opened a huge cloud of peroxide fume and rubber smoke flows forth. Can't suck too much air over the mold because it throws off the thermal balance.
His shop... less than ideal. It would be a hardship to run another 120v line at this point, but he does have more compressed air than he possibly needs.