1.Fan with humidifier 2.Purify air, freshen air,decrease dust 3. ... / FRP(black/blue/green)Continuous Working:1400hours1. Operating PrincipleThe mist fan was designed with the advanced principle of double atomization. The ... , bus stations, large gatherings, hotels cooling.dust extraction: farm, mine factory, etc. humidification: textile mills, cotton warehouses, parks, greenhouses, laboratories, flour ...