1.Fan with humidifier 2.Purify air, freshen air, ... black/blue/green)Continuous Working:1400hours1. Operating PrincipleThe mist fan was designed with the advanced principle of double atomization. ... machine shop, textile shop, clothing shop, shoe dyeing, plastics, injection molding, casting, heat treatment, casting glass, mist plating, electronics, ... water. Water-proof Water Spray Mist Cooling Fan