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Model
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Electricity cost (10 years, RMB)
Annual electricity consumption (kWh)
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Fan blade size (mm)
Airflow (m3/min)
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Fan blade number
Energy efficiency value (m3/(min.W))
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National energy efficiency grade
18/08/2011
Narcissus Chengfeng Jinling   Xiongsheng
NEA-KYT-30A3 FT4-A-26A FB-40P(Metal blade) Inefficient-Product TS-11
    FB-40P2(Metal blade)    
285.8 316.5 333.8 337.5 468.8
57.2 63.3 66.8 67.5 93.8
Box Fan Desk Fan Walling Fan Box Fan Mesa Fan
300 400 400 250 350
62.1 64.3 66.5 30.9 39.7
38.1 42.2 44.5 45.0 62.5
6 3 3 6 5
1.63 1.51 1.51 0.81 1.58
3 3 5   3
1 1 1 2 1