... easily,safely 5.excellant performance Ceiling Exhaust fanSize: 8' 10' 12'Standard: 200mm 250mm 300mmWatts: 25w 30w 40wAir delivery: 8 m3 ... 220/50power: 25w 30w 40w area: 5-8 m2 8-12 m2 15-20 m2noise: 36 39 45 1.PP/ABS ... packaging , colour , common packing , generally with the five layers of B/C paper bag packaging , general use three color cartons