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Do you have all three UV lamps switched on, or does it depend on how smelly the room is?I run a 8" and exhaust into garage.There is absolutely no smell. You can put your face at end of duct where 8" vortex pushes air thru B Blue and cant smell a thing...best product i ever bought!
Great, now I have an actual example to base my HVAC design on.i run 2 of three and have no odor..