Re: Probably air con fear
"Legionnaire's disease?"
The day you catch that from a modern split-cycle system is the day you'll be in the Guiness Book fo Records.
Legionnaires requires a very specific set of circumstances (and lack of hygiene) to proliferate. Being a soil bacteria it doesn't get into evaporative water cooling systems without assistance and won't spread if the water is disinfected/chlorinated. From there you need cross contamination from the chilled water to the ducted air system which carries cool air around the building.
Decent ducted-air systems include air filtration and UV sterilising lights. Failure to maintain those is when trouble starts.
As for fans blowing cold air onto someone: Simples: Don't do it. Anyone being blasted by a fan (AC or not) has ample reason for complaining already.
Biting the hand that feeds IT
