... CE,ISO9001, CCC,VOV certificates. Push-type humidifier fan/Industrial humidifier fanModel: YS-619Voltage:110 to 240V Frequency:50 ... chemical plant and non-woven workshop,etc..2. Widely used in paper industry, print industry tobacco industry, gunpowder industry, ... used to lower temperature and increase humidity in factories, public places, farm and animal husbandry. Push-type humidifier fan/Industrial ...