Ventilation and smoke management

For all you guys that have already had a crossfire, what did you do for venting? My understanding is that the water table helps, but if anyone has any feedback I’d appreciate it.

I bought one of these. It works well in my 19’x23’ garage space. WEN 3415T 3-Speed Remote-Controlled Industrial-Strength Air Filtration System (556/702/1044 CFM)

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With a water table it’s not bad at all. Just open an outside door or window and turn on a fan if it gets cloudy in the shop.


Remember that a filter even if it is HEPA rated will remove particles…but there are fumes associated with metal cutting.
A window or a door should be opened…and if that is not feasible due to the cold climate…like I have…then you should have an air exchange units or HRV unit to bring in fresh air.
this is becoming more and more popular in shops around the world on commercial levels.
this is just a basic home unit…but does wonders when on a shop and you are cutting…welding…grinding…

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I already have an exhaust system hooked up to my two laser cutters, it’s basically the same motor from the large Harbor Freight dust collector ducted to each machine with blast gates and then outside to a rain-capped stack that is about 2 feet taller than my building. (Which non-coincidentally meets Texas’ regulations for industrial painting facility stacks - 1.2 times the height of the building or the nearest structure within, I think, 50 feet.)

The Crossfire Pro is going to take the place of one of the laser cutters, and I’ll probably get a local HVAC shop to build a fume collector shield to place at the rear of the machine. The system is wired into a wall switch and gets turned on any time a laser is powered up. I can also open up one of the laser hoods and use it to evacuate welding smoke or sawdusty air in the building. Another eventual modification is running a third leg and blast gate to a whole shop dust collection pipe system, with a thien baffle or cyclone collector prior to the motor.

It’s not terribly noisy from outside the shop, but I still wouldn’t run it at midnight if you have neighbors.

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I prefer to install a high quality exhaust fan. Undoubtedly one of my best moves in a hot climate like Australia’s was installing a solar roof exhaust fan to get some stress out of the roof on the hottest days of the year. Of course, it depends on your local climate and since I’m not sure where you live, you might want to explore all kinds of alternatives. For us, it worked really well and the company that sold us the solar fan was extremely responsive to all the questions we had in regard to how the fan works and how exactly it can save us money.

welcome @FirstImpact to the forum…is that a dove for peace…of a flying chicken?

sometimes an exhaust fan does ot work for all people…like me…I can not use one from late October till mid April due to the climate…so I am installing a high grade air exchanger to save some heating costs but still exhausting fumes…