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Air Change Rate in Welding Shop

Air Change Rate in Welding Shop

Air Change Rate in Welding Shop

(OP)
Does anyone know the general rule of thumb for an air exchange rate inside of a welding shop?  I am trying to design a system to clean the air in our welding shop and cannot come up with the simple baseline.  Ive spoke to several manufacturers / suppliers of air cleaning systems and no body will flat out tell me.  Backing into the data ive collected the numbers range from 2 to 15 air exchanges per hour.  I found one table on engineering toolbox that says 12 to 15.  The one very helpful duct collector manufacturer tells me industry standard is 5 to 6.  Any help would be appreciated.

RE: Air Change Rate in Welding Shop

What kind of welding - electric, gas.

Check with one of your welding suppliers - they would probably have an idea.  So might OSHA.

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