... power design 3.experience factory Air cooler fan (380v) H-4LProduct name:air blower fan,air cooler,air fan,industrial air fan,evaporative air fanMain features:Environmental product: the ... compressor.Take the outdoor's fresh air into room and keep the indoor air clean and cool, increase the oxygen ... vegetable market,, mess hall, cinema and big waiting room,The areas have pollution gas and dust.The places ...