| 摘要 |
PURPOSE:To provide a fan having a simple configuration capable of forming a current of air which is comfortable to a human body. CONSTITUTION:There are provided a main fan 10 for blowing a main air flow and auxiliary fan 20 and 21 for blending secondary flows of air in the main flow intermittently or in a variable direction. The flows of air from the main fan 10 and the auxiliary fans 20, 21 are mixed to form a fluctuating flow of air like a natural wind with a simple configuration. |
