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Air dryer regen purge exhaust

Air dryer regen purge exhaust

Air dryer regen purge exhaust

I am putting in an air dryer that uses a blower and an external heater to regenerate the desiccant. I am trying to determine if it is ok to vent the purge exhaust into a building instead of outside. The manufacture does not include instructions on where it is to be vented, but said indoors was ok, and I have seen several dryer packages that have mufflers attached. Any concerns with health/safety of the purged air or carryover (ie. oil vapors from the compressor.)


RE: Air dryer regen purge exhaust

I suppose it all depends on the concentration of the contaminants within the oil vapor. As far as moisture release indoor, that should not be a problem, unless there are factors not mentioned in your OP. Since there are many unknowns at the moment, I'll say vent outside.
You must know the types of contaminants you expect to release, the concentration buildup inside presumably shop affecting employees and perhaps processes; All of which should be tested and documented in the event OSHA inspectors and perhaps clients wish to know this information.

RE: Air dryer regen purge exhaust

You should be asking the engineer who will sign and seal the drawings. I would not, as I do not want the liability due to complaints by personnel in the building.

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