... air change 80-90 times per hour - Wall or window mounted. -Blade Pulley of Light weight, High intensity, Quick assemble, ... Anti-corrision - Motor of 380/220V, 50HZ,3 Phase, IP 55, E Class - Each motor is individually tested ... on2.Commerce: hall, supermarket, hotel, net bar, recreational place, guesthouse.3.Public: hospital, station, gym, school4.Animal husbandry: poultry house, pig ...