1.Fan with humidifier 2.Purify air, freshen air,decrease dust 3.Long range ... stadiums, arenas, airports, bus stations, large gatherings, hotels cooling.dust extraction: farm, mine factory, etc. humidification: textile ... circus. the aquaculture industry: for farms, animal building cooling, deodorant, disinfecting.industry: machine shop, machine shop, ... . 24" Split Style Wall Mounted Air Cooling Fan